问题

Did you arrive here this morning?—Yes,it was at nine o’clock we came here.
A:when
B:before
C:which
D:that
B:before
C:which
D:that
正确答案是:
同类题型
Not until he called the secretary three times ______ that the manager went to an important meeting.
Is Mr. Smith driving here? —I’m not sure. He ______ come by subway.
Do you know __________ this dictionary belongs to?—Let me see. Oh, it’s __________.