—Would you like to go bike riding with us tomorrow ? —Sure , ______ I am busy .

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—Would you like to go bike riding with us tomorrow ?
—Sure , ______ I am busy .[     ]
A. since
B. unless
C. when
D. until

答案

举一反三

He went out without a coat, _______it was very cold. [ ]
A. but
B. though
C. since
D. because

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You can call Mr Li _____ you are in trouble inEngland.[     ]
A. before
B. after
C. when
D. because

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John didn’t go to school ___ he was ill. [ ]
A. because
B. so
C. but
D. why

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James didn"t come _____ the bell rang.       [     ]
A. until
B. at
C. when
D. before

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_____ he isn’t tall enough, he is good at basketball.      [     ]
A. Because
B. After
C. Although
D. Since

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