quãng đường trái đất đi được sau 3 giây:    

29,8 x 3 = 89,4 km

vận tốc của sao hỏa khi chuyển động xung quanh mặt trời:

29,8 + 5,7 = 35,5 km/giờ

quãng đường sao hỏa đi được sau 3 giây:

35,5 x 3 = 106,5 km

Đ/s: trái đất: 89,4 km

       sao hỏa: 106,5 km    

1. She….….…..out with her boyfriend last night.

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2. Laura…….….…...a meal yesterday afternoon.

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3. Mozart….….….…..more than 600 pieces of music.

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4. Tom…….….…...tired last week?

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5. The bed was not very comfortable so they…….….…...very well.

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4 B Lựa chọn và điền dạng đúng của từ và dịch

6. Jamie passed the exam because he…….….…...very hard.

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7. My father…….….…...the teenagers to drive when he was 50.

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8. Dave…….….…...to make a fire but there was no wood.

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9. The little boy….….….….. hours in his room making his toys?

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10. The telephone….….….…..several times this morning.

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giúp mình với ạ

Underline the correct phrase.
7. This term has been really hard. We'e had a lot of / a lot work to do.
8. The problem is that we only have a few / few good teachers at our school.
9. No, I'm not drunk! I only had a little / a little of beer to drink.
10. He said something about it this morning but I paid any / no attention.
11. They say a little / a little of knowledge is a dangerous thing.
12. Few / A few people know as much about computers as me.
13. It doesn't do any / no good to complain.