题目内容
Mr. Keller ______ forty cigarettes a day until he gave it up.
A. had smoked B. smokes C. have smoked D. smoked
D
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---What’s wrong with you, Mr. Keller?
--- I’ve had a very bad headache for two days. At first, I ______ I caught a cold, but the medicine ______.
A.thought, hasn’t worked |
B.had thought, didn’t work |
C.thought, hadn’t worked |
D.have thought, hasn’t worked |