2. 职称英语
  3. I didn’t manage to do it______you had explained how.A、untilB、unlessC、whenD、be

I didn’t manage to do it______you had explained how.A、untilB、unlessC、whenD、be

游客2024-10-26  48
问题 I didn’t manage to do it______you had explained how.
选项 A、until
B、unless
C、when
D、before
答案 A
解析
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