Headache is a very common diseases in the USA. Every year, about fifty million people have to go to the doctor because of headache. The symptoms of a headache is various. People can see black dots or bright spots in front of their eyes. They may also have pains only on one side of the head. Sometimes, when the pain goes away, the head is sore. People have headache when they work too hard or they are too nervous about ssomething. Medicine can help cure the diseases but people usually have to do more than taking tablets. They can prevent headaches by changing their diets or their lifestyle or simply by going to bed.

19 : My father is a worker

20 : The drugstore is on your left

21 : I will be thirteen next year

22 :Please tell me and write about you soon

23 : I'm going to go swimming this weekend

24 : I'm going to bring some flowers to the party

The traffic lights are green. you can ( go ) go now.

There ( benot ) aren't any stores in my neighborhood.

Where is your mother now? She ( cook ) is cooking in the kitchen

Minh and Ba ( play ) play soccer after scool

Are

1. We ( see ) will see movies tonight .

2. What does she ( do ) do​​ this weekend .

3. I ( stay ) will stay there for two days when I come there.

4. What you ( do ) will do this summer vacation .

1A/ 2D/ 3D/ 4C

3. Cup

4. From

5. Sneezing

6. Foot

8. About

9. Aquarium

11. Does

12. Not

20. How

15*(32-24:x)-230=70

15*(32-24:x)=70+230

15*(32-24:x)=300

32-24:x=300:15

32-24:x=20

24:x=32-20

24:x=12

x=24:12

x=2

1. Yes, I do. It's 2 meters long.

2. Students usually study their subject and play in the break time.

3.a, The colosseum in Rome/ b, Great Wall Of China/ c, Great Pyramid of Giza

4. I worship