单项选择题


A．on
B．in
C．Over
D．for
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单项选择题
A．stop to eatB．stop eatingC．stop to be eatingD．stop not to eat
A．stop to eat
B．stop eating
C．stop to be eating
D．stop not to eat
单项选择题
A．howB．whyC．whatD．when
A．how
B．why
C．what
D．when
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