Mary _________ as a volunteer teacher for 10 years.
#42380
A
works
B
will work
C
worked
D
has worked
推荐题目
—Oh, Mrs. Liu, your necklace looks nice. Is it new? — No, I ____ it for two years.
#39277
A
had
B
have had
C
bought
D
have bought
---Will you please stay here a little longer? ---Sorry, I . I eat dinner with my mother. She’s coming.
#41979
A
mustn’t; will have to
B
don’t; have to
C
can’t; had to
D
can’t; will have to
We only heard about the meeting yesterday, so it ______ yet.
#42760
A
didn’t prepare
B
hasn’t prepared
C
wasn’t prepared
D
hasn’t been prepared
What ________ if there ______ no water or air on the earth?
#39823
A
happen, is
B
will happen, is
C
will happen, will be
D
happen ,are