This chair is comfortable --------( )A.to sit B.to seat C.to sit on D.sit down 为什么选C

this bed is more comfor table than mine中文是什么? This chair is orange.(改成同义句) This is my chair.(改为一般疑问句) is this her chair的同义句 Is this chair[she her hers]? There is no chair in this room.(同义句) Is this your chair?Yes,it's 改错 This is John's chair改成复数句子 this chair is too hard 改为一般疑问句 This is chair/This is a chair.这两句哪一句是错误的?This is chair./This is a chair.这两句哪一句是错误的?两句想表达的意思有什么不同? Is this chair（ ）sale for 15yuan? 改为how引导的感叹句.This chair is very beautful. This chair is lighter than that one（中文）This chair is lighter than that one（中文） Where is the chair?Is _____on the floor?A.thatWhere is the chair?Is _____on the floor?A.that B.this C.the chair D.it what is this?______ a chair.A.is thisB.it is C.that is a chair in the garden.怎么没有动词.是不是应该是This is a chair in the garden whoes is this chair?（同义句）（）（）（）this? This dinning chair is different from that one这句话中为什么用that one 只用that行不行This dinning chair is different from that.