2. 职称英语
  3. I must have hung ______ for ten minutes before the telephone operator put me thr

I must have hung ______ for ten minutes before the telephone operator put me thr

游客2025-05-07  2
问题 I must have hung ______ for ten minutes before the telephone operator put me through.
选项 A、up
B、round
C、on
D、over
答案 C
解析 (hang on不挂断)。句意为：接线员给我接通之前，我必须十分钟不挂断电话。A．hang up挂断电话；B．hang round闲荡；D．hang over遗留下来。
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