问题
选择题
—How long _____ the meeting _____?
—For about ten minutes. [ ]
A. did; begin
B. has; begun
C. has; been on
D. has; been
答案
C
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—How long _____ the meeting _____?
—For about ten minutes. [ ]
A. did; begin
B. has; begun
C. has; been on
D. has; been
C