The students _______ their homework carefully when the teacher walked into the classroom quietly.
#36148
A
do
B
did
C
are doing
D
were doing
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— We must stop the hunters hunting the Tibetan antelopes(藏羚羊) in Tibet.— I agree with you. If it ________, they will ________ soon. 
#41662
A
goes, disappear
B
goes up, are disappearing
C
goes on, be disappeared
D
goes on, disappear
I don’t know if my uncle  _______ . If he _______ , I will be very happy .
#42535
A
comes; will come
B
will come; will come
C
comes; comes
D
will come; comes
His grandfather and grandmother _____Chongqing for 40 years. They like living there.
#41981
A
have been in
B
have been to
C
have gone to
D
have moved to
If it         tomorrow, I’ll go out for a walk with you. 
#39555
A
doesn’t rain
B
won’t rain
C
hasn’t rained
D
isn’t raining