Our classroom ________ very big and clean. We enjoy studying there.
#42373
A
am
B
is
C
are
D
be
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Thanks to the Internet, different kinds of information ________ in a short time.
#38990
A
can be learned
B
has been learned
C
can learn
D
has learned
We will go for a picnic if it_____ this weekend. 
#36947
A
will rain
B
rains
C
won ’ t rain
D
doesn’t rain