问题描述:
The missing boys were last seen _____near the river.
A.playing B.to be playing Cplay D.to play
see若变被动时应该是特殊的情况吗?不应该是be seen to do 吗?所以我选的D选项!
A.playing B.to be playing Cplay D.to play
see若变被动时应该是特殊的情况吗?不应该是be seen to do 吗?所以我选的D选项!
问题解答:
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