She says that she"ll have to close the shop ________ business improves.A．ifB．unl
题型：不详难度：来源：
She says that she"ll have to close the shop ________ business improves.| A．if | B．unless | C．after | D．when |
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答案
| B |
解析
试题分析：考查连词：A. if如果，B. unless除非，如果不，C. after在…后面，D. when当…时候，句意：她说她将不得不关掉商店，如果生意没有改善的话。选B。 |
举一反三
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