I think they are just so_so 变否定句
I think they like dolls.怎样变否定句
I think they are Englishmen.(改为否定句)
I think they are beautiful 改成否定句
I think they are customs officers.改为否定句是什么
I think they are over there .(改为否定句)________________________
I think they are funny 改为否定句
i think you are right.否定句
I think they are going to piay the pianos 的否定句
I think they are going to play the piano(改为否定句)
i think they are having a physics class.改为否定句
I am from China变否定句 They are from Japen 用Japen提问
I think I've got a headache.变否定句