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— We have no time to do it.
— _______ is our trouble.

A. It
B. This
C. Those
D. That
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科目:高中英语 来源:专项题 题型:单选题

— We have no time to do it.
— _______ is our trouble.
[     ]
A. It
B. This
C. Those
D. That

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