是sit in a chair还是at a chair

是sit in a chair还是at a chair 是sit in a chair还是sit on a chair? sit in a chair还是sit on a chair? 是sit on the chair还是sit in the chair sit in a chair sit on区别 sit ( )a chair T______is a chair in the room .You can sit. 是in chair还是on chair I found a chair to sit on I found a chair to sit I haven't got a chair to sit in. to sit in在句中作什么成分? 坐在椅子上用sit on the chair 还是sit in the chair