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Water is fundamental to the question of whether the planet has ever ……………………….
Question 1:
Water is fundamental to the question of whether the planet has ever ……………………….. microbial or some other life.
A.
support
B.
supported
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We make perfect tenses by putting the past participle form of the verb after has or have.
C.
supporting
These questions are from this test. Would you like to take a practice test?
General grammar exercise - Test 48 | Exercise follow Topic
24 minutes
12 questions
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Some questions from the same exam
We still don’t know ………………………. Mars supports life or not.
Scientists …………………………… that Mars might have supported life in the past.
Mars is ………………………… arid and dusty.
Characteristics like channels on the Martian surface indicates that the planet …………………………….. once very wet.
Scientists are …………………………… to learn about the history of water on Mars.
Water is fundamental to the question of whether the planet has ever ……………………….. microbial or some other life.
Life …………………………… we know it requires water.
A fisherman once ……………………………… on the banks of a river.
He ……………………………….. fishing every morning, but could never catch enough fish.
He ………………………………. a miserable life.
Then one day he ………………………………… a big fish.
The fisherman ………………………………. the fish to the market, but no one could pay the price he demanded.
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