We did nothing but sit/to sit in the chair,looking/to look a

We did nothing but sit/to sit in the chair,looking/to look a We did nothing but sit in the chair,looking at the mountains We did nothing but sit in the chair中 but后为什么接动词原形 I haven't got a chair to sit in. to sit in在句中作什么成分? A dog is on the chair A.sit B.sitting C.siting D.to sit His assistant heipsd to make the poor man sit in a chair. I found a chair to sit on I found a chair to sit sit in a chair sit on区别 He has got a chair to sit (on),but nobody to talk (to). he has got a chair to sit ____ but nobody to talk______ 是sit on the chair还是sit in the chair