Try to buy one before all the tickets ________.
#41719
A
will be sold
B
will be sold out
C
are sold
D
are sold out
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--Be quiet! The children ____________ now. --Oh, sorry. 
#42391
A
sleep
B
slept
C
were sleeping
D
are sleeping
Don’t go out. It _____ hard.
#40309
A
rain
B
rains
C
is raining
D
are raining