Thực hiện phép tính:

a, (8.5^7 - 5^5 +5^6) : 5^5

b, (9^30 - 27^19) : 3^57 + (125^9 - 25^12) : 5^24

c, (10^12 + 5^11 . 2^9 - 5^13 - 2^8) : 4 . 5^5 . 10^6

I. Finish each of the following sentences in such a way that it means exactly the same as the sentence printed before it. (1pt)

1. People said that he could swim across the river.

→ He was said_________________________________________________________.

2. Someone serviced his car last week.

→ He ________________________________________________________________.

3. Nga would rather stay at home and watch TV than go to the movies.

→ Nga prefers_________________________________________________________.

4. The owners of restaurants are usually rich.

→ The people_________________________________________________________.

5. These two boxers weigh exactly the same.

 → There is no_________________________________________________________.

6. I don’t phone you because I don’t know your phone number.

 → If_________________________________________________________________.

7. He was punished because he behaved badly.

→ Because of __________________________________________________________.

8. He was sorry he hadn’t said goodbye to her at the airport.

→ He regretted ________________________________________________________ .           

9. The box was so heavy that my son couldn’t carry it.

→ It was _____________________________________________________________.

10.  “Why don’t you take a day off tomorrow?” she said to me.

→ She suggested that____________________________________________________.

 VI. Each of the following sentences has ONE mistake. Underline the mistake and write the correction in the provided blank on the right. There is an example at the beginning (1 pt)

I. Identify the word whose stressed pattern is different from that of the others.