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.
A．Stomach cancer.B．Skin cancer.C．Lung cancer.D．Blood cancer.
A. Stomach cancer.
B. Skin cancer.
C. Lung cancer.
D. Blood cancer.
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