A. all them B. them all
C. both them D. them both
A. can't have told
B. ought to tell
C. could have told
D. mustn't have told
A. why
B. how much
C. whatever
D. how expensive
A. set out B. take up
C. go on D. get down
A can't
B mustn't
C needn't
D shouldn't
A thinking
B think
C to think
D thought
A since
B when
C as
D while
A. idea
B. punishment
C. behavior
D. instruction
A. if the winter is especially warm
B. during all of the year except the winter
C. in the winter as well as in other seasons
D. during the evenings in the winter
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