Mary___________ computer science last year.
#42215
A
studies
B
studied
C
will study
D
studying
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Li Wei with his friends _______ work on the farm next week.
#41992
A
goes to
B
go to
C
are going to
D
is going to
There __________heavy rain tomorrow. 
#39297
A
is
B
have
C
will be
D
will have