There are many people downstairs. What do you think ______?
#42822
A
to happen
B
happening
C
is happened
D
has happened
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I don’t know when my son __________back, but when he __________back ,I’ll give you a call
#40018
A
comes, comes
B
will come, will come
C
comes ,will come
D
will come, comes
Tell Tom to call me as soon as he ________ .
#42195
A
will arrive
B
gets there
C
has gone
D
reach here
Mr. Smith ____ the village since last year.
#42203
A
left
B
has left
C
has been away from
D
was away from
The mobile phone has influenced people’s life a lot since it      .
#39054
A
invents
B
invented
C
is invented
D
was invented