问题:
— Tom has been to Beijing before.
— _______.
[ ]
A. So has he
B. So he has
C. So is he
D. So he is
— Tom has been to Beijing before.
— _______.
B. So he has
C. So is he
D. So he is
— _______.
[ ]
A. So has he B. So he has
C. So is he
D. So he is
参考答案: