1. Paul apologized Susan for having given her the wrong number

2. If you do a lot of exercise, you stay fit and healthy

3. If you are impatient, you'll make mistakes

4. If he took some exercises, he would be healthy

5. Tim wondered If he would find a job

6. If I get a work permit, I'll stay for another month

7. If you don't study hard, you won't pass the exam

8. George said to Mary that he had seen the film three times

\(5x\left(3x^2y-2xy^2+1\right)-3xy\left(5x^2-3xy\right)+x^2y^2-10=0\)

\(\Leftrightarrow15x^3y-10x^2y^2+5x-15x^3y+9x^2y^2+x^2y^2-10=0\)

\(\Leftrightarrow5x-10=0\Leftrightarrow x-2=0\Leftrightarrow x=2\)

1. Peter prefers playing conputer games in his free time

2. Do you hate doing the washing?

3. My father enjoys playing sports and reading books

4. Our teacher doesn't mind helping us with difficult exercises

5. Jane doesn't fancy reading science books

6. Which kind of juice do you dislike to drink most?

7. Ann fancies doing DIY at weekend

8. My father prefers not to eat out

9. Mr. Smith lones going shopping on Sundays

10. Everyone adores receiving presents on their birthday

\(2x^2y-8y=2y\left(x^2-4\right)=2y\left(x+2\right)\left(x-2\right)\)

Would you mind if I go to the cinema?

1. He isn't old enough to drive a motorbike

2. He isn't tall enough to play volleyball

3. She is so beautiful that she can become Miss world

4. He wasn't hard-working enough to get good marks

5. He is so tall he can touch the light

6. The question isn't easy enough for us to answer

7. The porter wasn't strong enough to carry this heavy suitcase

8. He is so rich that he can buy an apartment 

9. John isn't hard-working enough to pass the finally exam

10. The question is so easy that all of us can answer it 

1. How long have she prepared for her overseas study?

2. Martin apologised Angela for having damaged her car

3. This city hasn't changed since 1990s

4. We are confident that people will work together to keep the environment clean

5. My mother often spends hours reading the artcles about cooking in magazines 

Minh quên, 44.D → have been ordered