Please come here____ you have time next month. [ ]A. because B. if

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Please come here____     you have time next month.   [     ]
A. because
B. if
C. after
D. since

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举一反三

_________they may not succeed, they will try their best.   [     ]
A. Though
B. When
C. Because
D. Unless

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—Perhaps I"m going to the market.
—Would you get me some juice ______ you"re there? [     ]
A.since
B.as
C.if
D.after

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He has been here _____ ten years ago. [ ]
A. since
B. in
C. for

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I feel a little tired, _____, I can hold on.    [     ]
A. however
B. and
C. but
D. so

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My teacher asked me _____ I was going to sing at the party and I said"Yes".[     ]
A. how
B. when
C. why
D. whether

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