单项选择题

The old concerns lose importance and some of them vanish altogether.

A．develop
B．disappear
C．link
D．renew
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单项选择题
It is out of the question that the inspector will come tomorrow.
A．impossible
B．possible
C．probable
D．likely
单项选择题
Cement was seldom used in building the Middle Ages.
A．crudely
B．rarely
C．originally
D．occasionally
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