A. spend B. spending C. spent D. spends
A. have rung B. wound ring C. have rung D. wound have rung
A. what B. that C. if D. otherwise
A. but B. however C. if D. otherwise
A. and B. so C. thus D. while
A. and B. but C. or D. so
A. and B. but C. or D. so
A. this is the first time has she lied
B. this is the first time does she tell a lie
C. this is the first time she had lied
D. this is the first time she was lying
A:I think so.
B:Oh, I'm sorry.
C:It's OK.
D:You are busy.
A:I don't tell you.
B:It's been delayed one hour.
C:You have to be patient.
D:Don't ask me.
A:What do you do?
B:It's a good idea.
C:No, thanks.
D:Certainly.
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