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The instructor had gone (over) the problems (many times) (before) the students (
The instructor had gone (over) the problems (many times) (before) the students (
游客
2025-03-16
36
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问题
The instructor had gone (over) the problems (many times) (before) the students (will take) the final examination.
选项
A、over
B、many times
C、before
D、will take
答案
D
解析
过去完成时和另一从句连用;先发生的事用过去完成时,后发生的事用一般过去时。改“will take”为“took”。
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