The split between humans and apes is believed by scientists______15 to 20 millio

The split between humans and apes is believed by scientists______15 to 20 millio

题型:不详难度:来源:
The split between humans and apes is believed by scientists______15 to 20 million years ago.
A.to be occurringB.having occurredC.to have occurredD.to occur

答案
C
解析

试题分析:句意:科学家们认为人类和猿类的分化发生在1500百万到2000百万年前。不定式的动作的发生要早于谓语动词动作的发生,因此用不定式的完成式,选C。
举一反三
---What do you think has made Tom feel down?
---- ______ his seat in the election, I think.
A.As he lostB.LostC.LosingD.Because of losing

题型:不详难度:| 查看答案
—Do you feel like ___________ there or shall we take a bus?
—I"d like to walk, but since there is no time left, I"d rather we ___________a taxi.
A.to walk; takeB.walking; tookC.to walk; took D.walking; take

题型:不详难度:| 查看答案
With globalization ___________ the world, learning foreign languages, particularly English, will become increasingly necessary if France is to compete economically.
A.sweepsB.to sweepC.sweepingD.swept

题型:不详难度:| 查看答案
In Singapore, people who litter or dirty the street are most likely ___________.
A.to fineB.finedC.to be finedD.being fined

题型:不详难度:| 查看答案
The little boy fell asleep while ______TV. So his mother sent him to bed at once.
A.watchedB.to watchC.was watchingD.watching

题型:不详难度:| 查看答案
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