By the time Jack returned home from England, his son_____ from college.A．graduat
题型：不详难度：来源：
By the time Jack returned home from England, his son_____ from college.| A．graduated | B．has graduated | | C．had been | D．had graduated |
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答案
| D |
解析
| 考察时态。根据by the time可知，该处要用完成时，因为by是完成时的标志，后面用什么时态就用什么完成时，所以，根据return可知，该处是用过去完成时 |
举一反三
His sister left home in 1998, and_______ ever since.| A．had not been heard of | B．has not been heard of | | C．had not heard of | D．has not heard of |
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The popular film Golden Compass ____ an imaginary world.| A．set in | B．is set in | C．sets in | D．is set on |
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–I _______ as the manager in this company.
–May I know since when?| A．worked | B．had worked | C．have worked | D．am working |
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---Tom almost ran into a pole yesterday while driving on the highway.
--- I suppose he ____ too fast.| A．had driven | B．was driving | | C．must drive | D．should have driven |
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We keep the belief that the bright future ______ to those who are well educated.| A．is belonging | B．is belonged | C．will be longed | D．belongs |
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