--have you ever been to Beijing before?--No. it is the first time that I here.A. amB. be C

问题补充：

--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

答案：

A. am

B. be

(答案→)C. have been

D. had been

解析：考查句型：it is the first time that后跟从句用现在完成时态，故选C。句意:这是我第一次来这里。