题目内容：

seat&sit的区别?
I don't understand why the villagers __________ in the back keep murmuring with one another.
A.to seat
B.sat
C.seating
D.sitting
为什么不能选其他的

优质解答

sitting是动名词,作定语,sitting in the back修饰the villagers,“the villagers sitting in the back”作主语,意思是“坐在后面的村民们”.seat是名词,“座位”,不能说成to seat或seating；sat是sit的过去式,在这里不能用动词形式,故D是正确的.