1 . Mr. Black walked around and offered help________ we were doing an experiment.
A.while | B.although | C.until | D.unless |
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2卷引用:2023年江苏省普通高中学业水平合格性考试英语仿真模拟试卷A(含考试版、全解全析、参考答案)
2 . Granny always keeps her cellphone switched off _________she's expecting a call.
A.Since | B.unless |
C.once | D.when |
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2019-02-18更新
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2卷引用:【市级联考】江苏省常州市2019届高三教育学会学业水平监测(含听力)英语试题