—The shirt feels soft. What is it _____ of ?—Cotton, I think.[ ]A. make B. m

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—The shirt feels soft. What is it _____ of ?
—Cotton, I think.[ ]
A. make
B. makes
C. making
D. made

答案

举一反三

—Betty, you _____ on the phone.
—Thank you.[ ]
A. want
B. are wanting
C. are wanted
D. have wanted

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The classrooms in our school _____ every day.[ ]
A. is cleaned
B. are cleaned
C. were cleaned
D. cleaned

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—This kind of rice tastes nice.
—Yes, it _____ in northeast of China.[ ]
A. was grown
B. has grown
C. is grown
D. is growing

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Travellers _____ to use mobile phones while flying.[ ]
A. don"t allow
B. aren"t allowed
C. won"t allow
D. didn"t allow

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Few students can understand the sentence until it _____ twice or three times.[ ]
A. explains
B. is explained
C. will be explained
D. has explained

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