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| A. | unless | B. | once | C. | because | D. | if |
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科目: 来源: 题型:选择题
| A. | in his fifty | B. | at the age of fifty years old | ||
| C. | in his fifties | D. | in the fifties |
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| A. | is she; Yes | B. | is she; No | C. | has she; Yes | D. | has she; No |
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| A. | needn't; must | B. | mustn't; can | C. | mustn't; may | D. | needn't; need |
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| A. | spend; in; at | B. | take; by; at | C. | cost; on; by | D. | take; in; at |
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