The first use of atomic weapons was in 1945, and their power ________ increased
题型：不详难度：来源：
The first use of atomic weapons was in 1945, and their power ________ increased enormously ever since. | A．is | B．was | C．has been | D．had been |
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答案
| C |
解析
| 句中的since为副词，表示“从过去某时起一直到现在”，它通常要与现在完成时连用。 |
举一反三
—Could you tell me how your father usually goes to work?
—Yes. If it is fine, he ________ to his office. | A．will walk | B．will go on foot | C．walks | D．would go on foot |
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—What place is it?
—Haven’t you seen that we ________ back where we ________ ?| A．were；had been | B．are；were | C．were；have been | D．are；had been |
|
—I suppose the young beautiful actress is about 20 years old.
— ________ ! She is still a college student. | A．You guess it | B．You guessed it | C．You have it guessed | D．You’re guessing it |
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We ________ to go skiing tomorrow，but there’s no snow，so we’ll just stay home instead。| A．are going | B．were going | C．will go | D．would go |
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I ________ you not to move my dictionary—now I can’t find it.| A．asked | B．ask | C．was asking | D．had asked |
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