A. must B. can
C. needn’t D. don’t have to
A. dirty B. dirtier
C. more dirty D. Dirtiest
A. cheer B. cheers
C. is cheering D. to cheer
A. see B. saw
C. have seen D. am seeing
A. is used to B. used to
C. was used to D. gets used to
A. look B. looks
C. to look D. looking
A. when did she go B. where did she go
C. when she went D. where she went
A. when did she go B. where did she go
C. when she went D. where she went
A. a B. an
C. the D. /
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