题目内容
单句改错
下句都有一处错误,指出并改正。
A matter exists in three states:solid, liquid and gas. ________
He has tried many treatments of skin disease. ________
This special program is designing to help the jobless people. ________
The disabled are usually arranged to sit in front of the bus. ________
I can feel chemicals in the water, I don't think we should drink it. ________