单项选择题

I ______ half an hour before she came out of the telephone box and I entered.

A．waited
B．have waited
C．had been waiting
D．was waiting

相关考题

The mother didn't know who ______ for the broken window...

单项选择题The mother didn't know who ______ for the broken window.

A．blamed
B．to blame
C．be blamed
D．would blame

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