— When did the meeting begin? —At four o
题型:选择题
问题:
— When did the meeting begin?
—At four o’clock.It ______ for 15 minutes.
A.was on
B.began
C.has been on
D.has begun
— When did the meeting begin?
—At four o’clock.It ______ for 15 minutes.
A.was on
B.began
C.has been on
D.has begun