B.seated是过去分词“让某人就坐”做宾补,这个动作是宾语的students发出的,他们自身又承受了这个动作.
seating是现在分词,表主动意义；sit和sits是谓语动词形式,不可在此做宾补；
When the teacher entered the classroom,he found the students already ___.
When the teacher entered the classroom,he found the students already ___.
A.seating
B.seated
C.sit
D.sits.
A.seating
B.seated
C.sit
D.sits.
英语人气：917 ℃时间：2019-09-30 06:17:10
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