题目内容

Lesson 10 is ____ most difficult lesson, but it isn’t ____ most difficult lesson in Book One.

A. a, a
B. a, the
C. the, the
D. the, a

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My sister works in a factory. She goes home once ____ month.

A. a
B. an
C. the
D. every

He was absent because he had caught ____.

A. heavy a cold
B. the heavy cold
C. a heavy cold
D. heavy cold

____ water is ____ liquid.

A. The, a
B. A, a
C. /, /
D. /, a

In winter ____ people often hang up wet clothes near ____ fire.

A. /, /
B. a, a
C. /, a
D. the, a

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