He often __________emails to his parents on weekends. 
#39309
A
send
B
sends
C
is sending
D
will send
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I don’t know when my son           back, but when he           back, I’ll call you.
#36254
A
comes;comes
B
will come;will come
C
comes;will come
D
will come;comes
I was doing my homework while my parents __________ TV last night.
#42075
A
watched
B
were watching
C
have watched
D
are watching
If it _____ on May Day, we’ll go to Wenzhou Amusement Park.
#39789
A
doesn’t rain
B
won’t rain
C
didn’t rain
D
isn’t raining