By the time Jack returned home from England, his son from college.
A. graduated
B. has graduated
C. had been graduating
D. had graduated
By the time Jack returned home from England, his son from college. A. graduatedB. has grad
答案:2 悬赏:40 手机版
解决时间 2021-01-04 10:57
- 提问者网友：玫瑰园
- 2021-01-03 12:09
最佳答案
- 五星知识达人网友：舊物识亽
- 2021-01-03 13:48
A. graduatedB. has graduated C. had been graduating(答案→)D. had graduated解析：本题考查动词时态。句意为“当杰克从英国返回家时，他的儿子已经大学毕业了。”by the time到…时候为止，一般与完成时连用。选D。
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- 1楼网友：长青诗
- 2021-01-03 15:06
就是这个解释
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