A. through
B. thorough
C. though
D. thought
A. oughtn‘t to go
B. hadn’t gone
C. shouldn‘t have gone
D. mustn’t have gone
A. be assigned
B. is assigned
C. will be assigned
D. has been assigned
A. we should prevent
B. we could prevent
C. should we prevent
D. shouldn‘t prevent
A. were absent
B. to be absent
C. being absent
D. had been absent
A. were absent
B. to be absent
C. being absent
D. had been absent
A. convinced
B. be convinced
C. convincing
D. having convinced
A. keep up
B. keep back
C. keep off
D. keep away
A. Two ninth
B. Second ninth
C. Second nines
D. Two ninths
A. the hour
B. an hour
C. hour
D. the time
A. hand
B. reach
C. space
D. distance
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