改错：What a great fun it is to jump into a river and swim in hot weather. 还有2句。Whatgreatfun.....1.Hedaren'
What great fun.....
1. He daren't tell..../ He doesn't dare(to) tell....
2. 去掉that
1，把great前的a去掉
2，理论上可以，但是如果是试卷上的改错题的话估计就不行了，因为改错题一般要求每行最多只能改一处
3，去掉that