单项选择题

Michael failed the exam. He （） have spent so much time playing computer games and chatting online.

A．mustn't
B．couldn't
C．wouldn't
D．shouldn't

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单项选择题
His mother asks him to do morning exercises, but he is not used to （） early in the morning.

A．get up
B．getting up
C．be gotten up
D．being gotten up
单项选择题
Twenty-four members took part in the debate, most of them making speeches （） to the chairman.

A．to oppose
B．be oppose
C．opposing
D．opposed
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