1.Tom had hardly left the classroom ______ it began to rain.A.asB.whenC.beforeD.after滑动查看答案☟ ☟ ☟【精析】B hardly…when…为固定结构,意为“刚……就……”，引导时间状语从句，从句用一般过去时，主句用过去...
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【精析】B hardly…when…为固定结构,意为“刚……就……”，引导时间状语从句，从句用一般过去时，主句用过去完成时，所以B项符合题意。as:当……时，按照，因为，尽管，引导时间、方式、原因和让步状语从句；before：在……以前，引导时间状语从句；after：在……以后，引导时间状语从句。故选B。
2. —What can I do for you, Madam?
—I’d like two _____________.
A.glass of milks
B.glasses of milk
C.glass of milk
D.glasses of milks
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3. I like listening to English songs because it can __________ make me relaxed __________ improve my spoken English.
A.neither；nor
B.either；or
C.not only；but also
D.not；but
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【精析】C
4.______man must fear when traveling in space is radiation from the sun.
A. What
B. How
C. Which
D. That
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