问题:
They are sorry to hear that the famous singer ______ for half an hour.
[ ]
A. has left
B. has gone
C. has been away
D. has been
They are sorry to hear that the famous singer ______ for half an hour.
B. has gone
C. has been away
D. has been
[ ]
A. has left B. has gone
C. has been away
D. has been
参考答案: