单句改错
【小题1】Lots of studies have been shown that global warming has already become a very seriously problem.
【小题2】I thought the biscuits were really well.
【小题3】My mum makes the better biscuits in the world,so I decided to ask her for help.
【小题4】I had noticed that the carriage was noise and filled with people.
【小题5】Don't panic or get out of line,and trying to remain quiet and calmly.
【小题6】So really friendship should be able to stand all sorts of tests.