单项选择题

______he referred to in his speech, the pollution in Beijing is indeed not serious.

A．What
B．As
C．Which
D．Since
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—Mark broke his leg when he was playing football.—______was that
A．Since when
B．Since when ago
C．How long
D．How long ago
单项选择题
At the seventh International Ballet Competition, Fernando Bujones won the first gold medal ever ______to an American male dancer.
A．awarded
B．to be award
C．being awarded
D．should be awarding
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