问题:
--have you ever been to Beijing before?
--No. it is the first time that I ____here.
A.am
B.be
C.have been
D.had been
--have you ever been to Beijing before?
--No. it is the first time that I ____here.
--No. it is the first time that I ____here.
A.am | B.be | C.have been | D.had been |
参考答案: