I was surprised to find him _ under the tree.A.sat B.seating C.to sit D.seated
问题描述：
I was surprised to find him _ under the tree.A.sat B.seating C.to sit D.seated
答
D sit 是一个不及物动词如果用它做宾语补足语应该是sitting
seat 是一个及物动词,做宾语补足语应该是seated
加油!