问题描述:
sit 和seated 的区别
when all the students ________,the professor began his lecture.
A.sat.B.were seated.C.seated D were sitting
选b为何不选d?
请各路高手赐教
when all the students ________,the professor began his lecture.
A.sat.B.were seated.C.seated D were sitting
选b为何不选d?
请各路高手赐教
问题解答:
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