Tenses Worksheet For Class 10 CBSE

This class 10 English grammar worksheet tests your ability to use tenses correctly.

Water …………….. (is covering / covered / covers) most of the Earth. ………………. (As compared / compared / comparing) to forests, prairies, and other ecosystems, the deep sea is by far the …………….. (large / larger / largest) ecosystem on the planet. So, if you want to understand Planet Earth, you have to understand ………………. (their / theirs / its / it’s) oceans.

About ten years ago, a team of researchers ……………… (has made / made / had made) an 11-day expedition to the Bahamas to do just that. The expedition, called Deep Scope 2007, ……………… (uses / used / has used) a tank like submersible to drop off and pick up a special camera system called the Eye-in-the-Sea, or EITS. The camera films with red light, which most deep-sea animals ………………. (cannot / could not / should not) see, so they ………………… (didn’t / hadn’t / don’t) get scared away.

Answers

Water covers most of the Earth. Compared to forests, prairies, and other ecosystems, the deep sea is by far the largest ecosystem on the planet. So, if you want to understand Planet Earth, you have to understand its oceans.

About ten years ago, a team of researchers made an 11-day expedition to the Bahamas to do just that. The expedition, called Deep Scope 2007, used a tank like submersible to drop off and pick up a special camera system called the Eye-in-the-Sea, or EITS. The camera films with red light, which most deep-sea animals cannot see, so they don’t get scared away.

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