1. "Let's do something interesting this evening"-"___________________"

A.Don't mention it

B.Ok, why not

C.What about doing?

D.You're welcome

2. You can exchange your currency________dollars in the hotel.

A.on

B.into

C.around

D.for

3.What a pity they couldn't pass the entrance________

A.examination

B.advertisement

C.repulation

D.scholarship

4.This year the only________for the best student belongs to her.

A.award

B.report

C.fee

D.tuition

5.This course book is intended for________students of English.

A.beginning

B.advance

C.intermediate

D.middle

1. "Let's do something interesting this evening"-"___________________"

A.Don't mention it

B.Ok, why not

C.What about doing?

D.You're welcome

2. You can exchange your currency________dollars in the hotel.

A.on

B.into

C.around

D.for               exchange sth for sth: đổi cái gì lấy cái gì

3.What a pity they couldn't pass the entrance________

A.examination             entrance examination: kỳ thi đầu vào

B.advertisement

C.repulation

D.scholarship

4.This year the only________for the best student belongs to her.

A.award

B.report

C.fee

D.tuition

5.This course book is intended for________students of English.

A.beginning

B.advance

C.intermediate

D.middle

I. When you give your opinion about something, you can use: S + find sth/ doing sth + adjective. / I think ( that) sth/ doing sth is + Adj.

E.x: 0. I find making pottery interesting.  = I think making pottery is interesting.

00.  What do you think about making pottery? = How do you find making pottery?

1. I think dancing is interesting = I find……………………dancing interesting……………………………………..

-> I like ……………dancing……………………………………..

2. He finds ice- skating difficult and dangerous.= He thinks…………………………ice- skating is difficult and dangerous.………

3. Dad thinks making models is boring = Dad finds………………………making models boring……………………………

I am not…………interested in making models ……………..

4. I think carving wood is creative. = I find………………………carving wood creative……………………………

5. How do you find bird watching? = What do……………………you think about bird watching………………………..?

6. It’s three years since my father last smoked.à My father hasn’t …........................................ hasn't smoked for 3 years..........................

7. We started to live in Nha Trang five months ago.à We have …......................................lived in Nha Trang for five months ..................

8. Nick has had a cold for 3 days because he didn’t wear warm enough.

à Because …........................of not wearing warm enough, Nick has had a cold for 3 days ..........................................................

9. I last phoned my sister in June.à I haven’t …..................................phoned my sister since June.................................................

10. It’s a long time since we moved to live here.à We have …..............................lived there for a long time.....................................................

11. Minh began to carve egg shelves in 2010.à Minh has …........................................carved egg shelves since 2010..........................................

12. Because of the difficult test, I couldn’t finish it.à Because the test …....................................was difficult, I couldn’t finish it ........................

13. The lake is full of rubbish, so they have decided to clean it up.

à They’ve ........................... decided to clean up the neighborhood because it is full of rubbish.........................................................

14. I find learning the saxophone difficult.=> I think………………………… learning the saxophone is difficult……………………….

15. Mai drinks less milk before going to bed than her sister.

=> Her sister drinks……………… more milk before going to bed than she does.……………………………………………….

16. I found leaning English interesting.=> I thought……………………leaning English is interesting…………………………………

17. He does more exercise than I do=> I do…………………………less  exercise than he does ………………………………

18. My Mom has less free time than Dad.=> My Dad has…………………more free time than my mom…………………………………..

19 No house in this area is more beautiful than her house.

=> Her house………………the most beautiful house in this area ……………………………………………………

20. He swims more quickly than his brother.=> His brother swims………………………less  quickly than he does………………….

=> His brother doesn’t swim as………quickly as he does………………………………………….

21. I am more interested in  riding a bike than Lan.=> Lan is not…………………as interested in riding a bike as me………………………………..

22. Hoa sounds down. She does exercise in the morning. ( Although)

………………………………Althou Hoa does exercise in the morning., she sounds down……………………………………………….

23. You do more exercise. You will continue to be sick. ( or)

………………………………………You do more exercise or you will continue to be sick.……………………………………….

24. I want to donate money to the poor. I want to raise funds for the community.( and)

………………………I want to donate money to the poor and raise funds for the community……………………………………………………….

25. Nam is putting on weight. He doesn’t do exercise in the morning. ( but)

………………………………………Nam is putting on weight but he doesn’t do exercise in the morning……………………………………….

26. I stay up late. I go to school late. ( Because)……………………Because I stay up late, I go to school late.……………………… ………………….

27. My Dad finds coin collecting wonderful=>  My Dad thinks……………………………coin collecting is wonderful………………

28. Lan is keen on carving eggshells.=>  Lan………………enjoys carving eggshells.………………………………………………………..

29. Does your teacher enjoy taking photos?=>  Is………………………………your teacher fond of taking photos?………………..….?

Bài 2: 

a: \(f\left(x\right)=-9x^3-2x^2+6x-3\)

\(G\left(x\right)=9x^3-6x+53\)

b: \(H\left(x\right)=9x^3-6x+53-9x^3-2x^2+6x-3=-2x^2+50\)

c: Đặt H(x)=0

=>2x²-50=0

=>x=5 hoặc x=-5

Câu 4:B

Câu 5:A

4b vì góc tới bằng góc phản xạ nên lấy 80/2=40

You are not allowed to smoke here.

Obesity can be considered to be one of the most serious health problem.

Câu 2: 

uses crt;

var a:array[1..100]of integer;

i,n,t:integer;

begin

clrscr;

write('Nhap n='); readln(n);

for i:=1 to n do

begin

write('A[',i,']='); readln(a[i]);

end;

t:=0;

for i:=1 to n do 

if (4<a[i]) and (a[i]<15) then t:=t+a[i];

writeln(t);

readln;

end.