題目列表(包括答案和解析)
He met many problems------ he was going over his lessons.
A. before B. as soon as C. since D. while
He met many problems he was going over his lessons.
A. before |
B. as soon as |
C. since |
D. while |
He met many problems he was going over his lessons .
A. before B. as soon as C. since D. while
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