“Today is very cold, isn’t it?” “Yes, the river is _____ over.”
A. freezed
B. freeze
C. frozen
D. freezing
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“What happened in that new area?” “New houses ______ recently over there.”
A. are built
B. build
C. have built
D. have been built
“When did you go to work?” “As soon as they came, we ______ to work.”
A. went
B. were going
C. had gone
D. go
“Did you wait for him very long?” “Yes, I ______ to bed until five in the morning.”
A. did go
B. didn’t go
C. had gone
D. went
Perhaps it will be a long time ______ from abroad.
A. when Tom comes back
B. when Tom will come back
C. before Tom comes back
D. that Tom comes back