Câu 1: nêu các hoạt đọng tiêu hóa hóa học, tiêu hóa lí học ở:

a)Khoang miệng? Vì sao ở miệng tiêu hóa lí học là chủ yếu?

b)Dạ dày? vì sao trong dạ dày có độ axit cao?

c)Ruột non? vì sao trong ruột non tiêu hóa tất cả các loại thức ăn

Câu 2:Nêu cấu tạo ruột non phù hợp với chức năng hấp thụ chất dinh dưỡng?

Câu 3: Điều kiện để enzim trong nước bọt hoạt đọng tốt nhất là gì?

1.dóe your country buy machines from Japan?

2.she ought to tell ú the truth

3.somebody cleans the room everyday

4.how do people learn language?

5.somebody must do something for those poor men.

6.Mr.R teaches us how to speak english properly

7.peter is writing a letter to his friends

8.people play football all over the world

9.the president was signing those papers

10.people can recycly tires to make pipes or floor covering

11.do they speak French and English inCanada?

12.when does he usually do his homework

13.we can use the garbage to make fertilizer

14.break the glass into small pieces

15.dry the glass pieces completely

16.mix them with certain special chemicals

17.melt the mixture until it become a liquid

1.they were cleaning the room when I arrived

2.they must dry the beans in the sun

3.the foreman is showing the students around the factory

4.A Chinese official made paper from wood pulp in the year 105

5.people say the computer is one of the most important inventors

6.we haven't finished our homework yet

7.they will make the next meeting in Chicago

8.when did Lewis waterman invent the fountain pen

9.somebody clean the room everyday

10.john will collect me at the airport

11.your teacher must sign this form

12. will you invite her to your birtday party

13.we can't wear jeans at work

1. people say that he is a doctor

2.they think he is playing soccer in Manchester

3.people say that he broke into the house

4.they say that he works for a international bank

5.he gave me this book om my 15th birtday.

6they haven't sent John a letter for two years

1.I will write a letter

2.john will learn the lesson

3.will you help him?

4.millions of people will visit the museum

5.they will finish the work tomorrow

6. my friends will visit him tomorrow

7.vengatesh will win the first prize

8.they will not show the new fiml

9.will the plumber repair the shower?

10.will the company employ a new worker?