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She is often seen ______ the old woman.  
#50014
A
help
B
helping
C
to help
D
help to
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Please ask your friends___________so much noise．
#49587
A
not to take
B
don’t take
C
not to make
D
don’t make
Children are often warned ______ with fire.
#48506
A
not to play
B
to play
C
don’t play
D
doesn’t play
--- Mum, I am very thirsty(口渴).--- What about          some orange juice?
#49725
A
drink
B
to drink
C
drinks
D
drinking
We can’t put off _________ a plan.
#49432
A
making
B
makeing
C
to make
D
make to
What is the best way you think of ______ the environment?
#51117
A
to protect
B
protecting
C
protect
D
protected