题目内容
________ since the night before, I felt very hungry.
[ ]
A.Having eaten anything
B.Not having eaten anything
C.I hadn't eaten anything
D.Not eating anything
答案:B
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My colleague has been recovering gradually since the operation, and it wont’ be long ______ he comes back to work.
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A.before |
B.since |
C.after |
D.when |