谁帮我把这些复合句变简单句啊
1 it‘s impossible that he would finish the experiment in such a short time
2 i went over my composition again so that i wouldn't make any mistakes
3 we found that he was really difficult to get on with
4 he worked hard so taht he could pay off his debts ahead of time
5 i found that it's helpful for me to do morning exercises
6 it is necessary that a college student should grasp at least a foreign language
7 the woman who is wearing a blue skirt is our manager
8 all the victims that were injured in the accident were sent to the hospital
9 if you follow the professor's advice,you will certainly succeed
10 after the work was finished,he went abroad to enjoy his hilodays
11 he couldn't cime to the party because he was ill
12 when she arrived at village,she saw several tractors working in the fields