题目列表(包括答案和解析)
A.had learned | B.have learned | C.learned | D.were learning |
A.collect | B.collected | C.have collected | D.had collected |
A.collect | B.collected | C.have collected | D.had collected |
By the time we rushed to the hall, the party ________ for ten minutes.
A.had begun | B.began | C.was on | D.had been on. |
By the time she went outside, the bus ____ already ______ .
A.had, gone | B.had, went | C.has, gone | D.has, went |
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