______ it doesn"t rain next Sunday, we will go to visit the Oriental Pearl TV To

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______ it doesn"t rain next Sunday, we will go to visit the Oriental Pearl TV Tower.            [     ]
A. Unless
B. If
C. When
D. How

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举一反三

_________ she doesn’t do well in her study, she is friendly to others. [ ]
A. Because of
B. Even though
C. Thanks to

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It"s hard to imagine a world _____ printing _____ we have so many printed things now.[     ]
A. without; because
B. with; so that
C. without; as a result
D. with; so

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______ you’re tired, you’ve been working for hours.[     ]
A. If
B. Because
C. Though
D. No wonder

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Not only ______to see me, but also he stayed for dinner, too.    [     ]
A. did he come
B. he came
C. does he come
D. he comes

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I tried to call you _____ I hear from him, but you were not in.[     ]
A. since
B. while
C. until
D. as soon as

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