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
B:be
C:have been
D:had been
正确答案是：
同类题型
If any accident ______ here tomorrow, it will be very serious.
What’s yourname, please?— Robert Thomas Brown. You can call me Robert.
______does it take to get to the school? —About 10 minutes. [ ]
There will be _____ people and ____ pollution in the future .
You must tell me the answer ________ the question before they come. [ ]