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Camels can walk a long way without __________ .
#50538
A
to drink
B
drinks
C
drinking
D
drank
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Tom is a hard-working boy, he always keeps       English.
#50279
A
practice speaking
B
speak
C
practicing speaking
D
practice spoken
Many people like Xiao Shenyang because he often makes people _______ happily..
#48680
A
laughing
B
to laugh
C
laugh
D
laughs
Don’t forget ________ an umbrella. It’s going to rain.
#50855
A
to take
B
to bring
C
taking
D
bringing
My bike is broken. It needs ____.  
#50612
A
to repair
B
to be repaired
C
repaired
D
be repaired 
The teacher wants us_______the classroom.
#50196
A
to clean
B
cleans
C
cleaning
D
clean