3. Change and correct the sentences with the use of must or have to in different tenses.
1. You read this book, it's probably great.
2. She felt unwell and leave early.
3 .1 hadn’t enough cash and I pay by cheque.
4. You do what mother says.
5. British pupils stay at school till the age of 16.
6 .1 was lost and ask the policeman the way.
7. The buses were all full, I get a taxi.
8. The chambermaids usually do a lot of work.
9. It is very slippery outside, it has snowed at night.
10 .1 leave home at 7 a.m. not to be late for my job.

1. You must read this book, it's probably great.  

2. She felt unwell and had to leave early.  

3. I hadn’t enough cash and I had to pay by cheque.  

4. You must do what mother says.  

5. British pupils have to stay at school till the age of 16.  

6. I was lost and had to ask the policeman the way.  

7. The buses were all full, I had to get a taxi.  

8. The chambermaids usually have to do a lot of work.  

9. It is very slippery outside, it must has snowed at night.  

10. I have to leave home at 7 a.m. not to be late for my job.