Teenagers              allowed to drive in the street .
#44899
A
should not be
B
should be not
C
not should be
D
shouldn’t
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Stamps ______ sending letters.
#45020
A
used to
B
are used to
C
are used for
D
are using
The earth is our home. It ______________ well.
#44581
A
must be protected
B
should protect
C
need protect
D
need protecting
It is said that Chinese people_________ to travel to Hongkong freely next year.
#44418
A
are allowed
B
allow
C
will allow
D
will be allowed