{"id":71565,"date":"2019-02-03T03:55:43","date_gmt":"2019-02-03T03:55:43","guid":{"rendered":"http:\/\/perfectyourenglish.com\/blog\/?p=71565"},"modified":"2019-02-02T05:17:48","modified_gmt":"2019-02-02T05:17:48","slug":"tenses-worksheet-for-classes-9-and-10","status":"publish","type":"post","link":"https:\/\/perfectyourenglish.com\/blog\/tenses-worksheet-for-classes-9-and-10\/","title":{"rendered":"Tenses Worksheet For Classes 9 and 10"},"content":{"rendered":"

Fill in the blanks with an appropriate tense form of the verb. This grammar exercise is useful for high school students.<\/p>\n

Tenses Worksheet for Classes 9 and 10<\/h2>\n

The system \u2026\u2026\u2026.1\u2026\u2026\u2026.. only a point-and-shoot or video camera that \u2026\u2026\u2026\u2026.2\u2026\u2026\u2026.. high-resolution pictures of people’s faces. Computers can then analyze these images \u2026\u2026\u2026\u2026.3\u2026\u2026\u2026\u2026 where the people are looking.<\/p>\n

To do this, a computer program \u2026\u2026\u2026\u20264\u2026\u2026\u2026\u2026.. the line where the iris (the colored part of the eye) \u2026\u2026\u2026\u2026\u2026..5\u2026\u2026\u2026\u2026\u2026 the white of the eye. If you look directly at a camera, your cornea \u2026\u2026\u2026\u2026\u2026\u20266\u2026\u2026\u2026\u2026\u2026\u2026 perfectly round. But as you glance to the side, the angle of the curve \u2026\u2026\u2026.7\u2026\u2026\u2026\u2026. A formula \u2026\u2026\u2026\u20268\u2026\u2026\u2026\u2026.. the direction of the eye’s gaze based on the shape of this curve. Next, the program \u2026\u2026\u2026\u2026.9\u2026\u2026\u2026\u2026\u2026 the direction from which light is coming as it hits the eye and bounces back to the camera. The computer uses all this information to create an environment map of everything \u2026\u2026\u2026\u2026..10\u2026\u2026\u2026\u2026\u2026 the eye.<\/p>\n

    \n
  1. a) is requiring; b) required; c) requires; d) has required<\/li>\n
  2. a) is taking; b) takes; c) has taken; d) took<\/li>\n
  3. a) to determine; b) determining; c) to determining; d) determine<\/li>\n
  4. a) identifying; b) identifies; c) is identifying; d) has identified<\/li>\n
  5. a) meets; b) is meeting; c) has met; d) met<\/li>\n
  6. a) appears; b) appeared; c) will appear; d) would appear<\/li>\n
  7. a) is changing; b) has changed; c) changes; d) would change<\/li>\n
  8. a) calculate; b) calculates; c) has calculated; d) calculated<\/li>\n
  9. a) has determined; b) determines; c) is determining; d) determine<\/li>\n
  10. a) surround; b) surrounding; c) surrounded; d) surrounds<\/li>\n<\/ol>\n

    Solution<\/h3>\n

    The system requires<\/strong> only a point-and-shoot or video camera that takes<\/strong> high-resolution pictures of people’s faces. Computers can then analyze these images to determine<\/strong> where the people are looking.<\/p>\n

    To do this, a computer program identifies<\/strong> the line where the iris (the colored part of the eye) meets<\/strong> the white of the eye. If you look directly at a camera, your cornea appears<\/strong> perfectly round. But as you glance to the side, the angle of the curve changes<\/strong>. A formula calculates<\/strong> the direction of the eye’s gaze based on the shape of this curve. Next, the program determines<\/strong> the direction from which light is coming as it hits the eye and bounces back to the camera. The computer uses all this information to create an environment map of everything surrounding<\/strong> the eye.<\/p>\n

    Notes<\/strong><\/p>\n

    Use the simple present tense to talk about facts. You can find an overview of the simple present tense here<\/p>\n","protected":false},"excerpt":{"rendered":"

    Fill in the blanks with an appropriate tense form of the verb. This grammar exercise is useful for high school students. Tenses Worksheet for Classes 9 and 10 The system \u2026\u2026\u2026.1\u2026\u2026\u2026.. only a point-and-shoot...<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[231],"tags":[535,596,119],"class_list":["post-71565","post","type-post","status-publish","format-standard","hentry","category-class-10-worksheets","tag-class-10-english-grammar-worksheets","tag-english-grammar-worksheets","tag-tenses-worksheet"],"_links":{"self":[{"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/posts\/71565","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/comments?post=71565"}],"version-history":[{"count":1,"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/posts\/71565\/revisions"}],"predecessor-version":[{"id":71566,"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/posts\/71565\/revisions\/71566"}],"wp:attachment":[{"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/media?parent=71565"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/categories?post=71565"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perfectyourenglish.com\/blog\/wp-json\/wp\/v2\/tags?post=71565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}