单项选择题

Loudspeakers were fixed in the hall so that everyone ______ an opportunity to hear the speech.

A. ought to have
B. must have
C. may have
D. should have
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单项选择题
There used to be petrol station near the park, ______
A. didn't it
B. doesn't there
C. usedn't it
D. didn't there
单项选择题
Land belongs to the country; there is ______ thing as private ownership of land.
A. no such a
B. not such
C. not such a
D. no such
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