câu 1 Đĩa và líp xe đạp ăn khớp với nhau bởi dây xích, đĩa có 39 răng, líp có 13 răng. Khi đĩa quay được 2 vòng thì líp quay được mấy vòng

Câu 3: 5 công nhân xây xong bức tường trong 12 ngày. hỏi cần bao nhiêu công nhân để xây xong bức tường đó trong 10 ngày?

Reading 3. Choose the best answer to complete the passage:

Headache is a very common disease. The symptoms (1)…….. a headache are various. People may (2)……….. pains only one side of the head. Sometimes when the pain goes away, the head is sore. People have a headache (3) …………. they work too hard or they are too nervous about something. (4)……….. can help cure the disease but people usually have to do more than taking tablets. They can prevent headaches by changing their diets or their (5)…………… or simply by going to bed.

1. A. on                     B. in                                    C. of                                  D. at

2. A. be                     B. have                               C. happen                         D. take

3. A. when                B. but                                  C. so                                 D. and

4. A. Medicine         B. Doctor                           C. Sport                            D. Fruit

5. A. life                    B. lifestyles                        C. hobbies                        D. crowd

UNIT 1: MY HOBBIES

1. My father / with / me. / shares / this hobby /

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2. I / the sweet / love / listening / like / melodies. / to music, / I /

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3. You / when / they are / carving eggshells / should be / because / very fragile. / careful

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4. kind of/ charity event/ organize ?/ What/ should/ we

………………………………………………………………………………………….

5. She/ when/ the hobby/ 6. start/ she/

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6. Nga / before / bed. / a book / often / going to / reads /

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Reading 4.

Hi Alice,

I had a great time in Greendale this weekend. I took part in a clean-up. It was really cool !

I arrived at Wilson park in Greendale on Friday morning. There was trash all over the grass and even in the trees ! The smell was terrible. Around 80 volunteers took part in the clean-up. We worked all day and picked-up over four tonnes of trash! The park looked beautiful after we finished. The event was organized by Clean and Green. It organizes clean-ups all over the country. I want to do another one soon. Do you want to come?

See you,

Tim

1. Where did the clean-up happen?......................................................................

2. How many people helped to pick-up trash?.....................................................

3.  How much trash did they pick-up?...................................................................

4. Who organized the clean-up?...........................................................................