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our teacher entered the classroom with a smile _________.a.on his face b.being on his face c.in his face d.to be on his facea和B有什么不一样?为什么不能选b?

题目详情
our teacher entered the classroom with a smile _________.
a.on his face b.being on his face
c.in his face d.to be on his face
a和B有什么不一样?为什么不能选b?
▼优质解答
答案和解析
B选项加上being多余了.