题目内容
用括号内所给动词的适当形式填空。
Our Maths teacher ________(prepare)the new lesson with other teachers in the office from 2 to 4 yesterday afternoon.
答案:was preparing
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题目内容
用括号内所给动词的适当形式填空。
Our Maths teacher ________(prepare)the new lesson with other teachers in the office from 2 to 4 yesterday afternoon.