把下列句子转换为间接引语或直接引语。
1．Jackson said，“Your handwriting is better than mine．”
2．The teacher said，“Light travels faster through air than it does through water．”
3．“Would you be so kind as to show me the way to the City Hall？”Smith said to me．
4．“Please look up the new words in your dictionary．”said the teacher．
5．The students asked the teacher，“Is it the best way to work out the problem？”
6．“If we know more about the cause of cancer，”the doctor said，“we could probably find a cure in the next five years．”
7．“Have you realized the importance of developing China through science andeducation？”the professor asked．
8．“What is the hot topic in Chinese education circles with the 2lst century just around the corner？”the lecturer asked the teachers．
9．“I think it's going to be a wonderful party．Are you going？”he said to me．
10．“Don't stay up too late，or it will do harmto your health．”the teacher said．
11．“You've already recovered，haven't you？”he asked．
12．“You may come here for the novel the dayafter tomorrow．”Helen said．
13．Jane told the children，“You must finish your homework beforeyou can watch TV．”
14．“Must I hand in the exercises today？”he asked Miss Lin．
15．“Happy New Year to you all！”he said．
16．He says that he is very tired and hewants to take two days off．
17．He said it was one of the most beautiful cities that he had ever visited．
18．The young pioneers came back withtwo wallets and said that they picked the mup in the street．
19．Jane asked if she had to get there by bus or on foot．
20．The old lady asked when the last train had left．
21．He said that the workers were trying to finish the work ahead of time．
22．Mother said that I ought to see thedoctor at once．
23．Jack said that when they lived in the same town they had often seen Mary．
24．He said that if the baby had been crying at that time he could have heard him．
25．He said that he would mend the window that afternoon．
key:
1．Jackson said（said to me ／told me）that my handwriting was better than his．
2．The teacher said（said to us ／told us）that light travels faster through air than it does through water．
3．Smith asked me if I would be so kind as to show him the way to the City Hall．
4．The teacher told me（us）to look up the new words in my dictionary（our dictionaries）．
5．The students asked the teacher whether（if）it was the best way to work out the problem．
6．The doctor said that if they knew more about the cause of cancer，they could probably find a cure in the next five years．
7．The professor asked us if we had realized the importance of developing China through science and education．
8．The lecturer asked the teachers what was the hot topic in Chinese education circles with the 21st century just around the corner．
9．He told me that he thought it was going to be a wonderful party and asked if I was going． 10．The teacher told us not to stay up too late，or it would do harm to our health．
11．He asked me if I had already recovered．
12．Helen told me that I might go there for the novel in two days'time．
13．Jane told the children that they must ／had to finish their homework before they could watch TV．
14．He asked Miss Lin if he had to hand in the exercises that day．
15．He wished us a happy New Year．
16．He says，“I'm very tired，and I want to take two days off．”
17．He said，“This is one of the most beautiful cities that I've ever visited．”
18．The young pioneers came back with two wallets and said，“We picked these up in the streets．”
19．“Do I have to come here by bus or on foot？”Jane asked．
20．“When did the last train leave？”the old lady asked．
21．He said，“The workers are trying to finish the work ahead of time．”
22．Mother said，“You ought to see the doctor at once．”
23．Jack said，“When we lived in the same town，we often saw Mary．”
24．“If the baby were crying now，I could hear him，”he said．
25．“I'll mend the window this afternoon，”he said．
