The population of the world ____ still ____ now.
#39634
A
has; grown
B
is; growing
C
will; grow
D
is; grown
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By the end of last term we ___________ about ten English songs.
#41740
A
had learned
B
have learned
C
learned
D
were learning
--Could you tell me when Mr. Li ______ in Beijing?--Sure. When he _____, I ’ll call you. 
#36954
A
arrives;will arrive
B
will arrive; arrives
C
arrives; arrives
D
will arrive; will arrive
While Ann ___ TV, her father came home.
#41786
A
is watching
B
was watching
C
watch
D
watches
He     a bike in the street when he was hit by a car.
#41939
A
was riding
B
is riding
C
rode
D
rides