题目内容

【B5】

A. nothing
B. all.
C. OK

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【B3】

A. isn't
B. are
C. aren't

The tower was built ______.

A. to guard the city
B. for the people to see the sea
C. as a church bell tower

The two ends of a tunnel are very wide.

A. Right.
B. Wrong.
C. Doesn't say.

Why does it lean?

A. Because it was built as a lean tower.
Because it was built on soft ground.
C. We don't know.

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