31. It’s two weeks since we _______ the work in Beijing Ren’ai Education Institute .
#42537
A
finish
B
have finished
C
finished
D
has finished
推荐题目
There __________heavy rain tomorrow. 
#39297
A
is
B
have
C
will be
D
will have
If it ______ tomorrow, we’ll go to Bird’s Nest.
#42388
A
didn’t rain
B
won’t rain
C
doesn’t rain
D
isn’t raining
--- Have you seen the film Titanic? ---No , but I ________.
#41836
A
didn’t
B
haven’t
C
am going to
D
am not going to
---There__________ a concert of Justin Bibber in Zhuhai next month. Shall we go? --- Sure, I like him a lot.
#37943
A
are going to have
B
is going to be
C
is going to have
D
are going to be