题目内容：

下列句子中个有一个错误,找出并改正
列句子中个有一个错误,找出并改正：
1.So seriously is heinjured that it is necessary that he is sent to the hospital at once.
2.The medical workersare trying hard to find the cure for the deadly disease.
3.Tom speaks Chinesebetter than anyone in his class.
4.Beside English,wealso study many other courses at school.
5.It will take us along time when we find out a good solution to the problem.
6.We must do all thatwe can to help the victims of the terrible earthquake.
7.Nothing is moreimportant when we take steps to stop both air and water pollution.
8.The painting cost metwice as much as I expected.
9.She was lonely,andhelpless.We should show more concerns to her.
10.Mr.Wang,I am sosorry that I have forgotten to take my notebook with me.
11.There was no doubtthat a student must spend most of his time on his study.
12.She hanged thepicture on the wall and looked at it for a moment.
13.What I must do thisafternoon is to clean the house and do some reading.
14.The woman likesshopping and other activities that cost money at weekends.
15.I did go to Beijingearly in this year.My trip there was wonderful and pleasant.
16.Retell the storywith no more than 10 sentences.
17.May I have a look ofthe new dress you bought yesterday?
18.In his spare time heteaches him English.
19.I’d like to go thereearly today in case of there is a traffic jam.
20.Those are the peoplewho survived from the earthquake.