Tìm góc nhọn x

5sin(90^o - x) - 3cosx = 1.5

7sin²x + 5cos²x = 6,5

1. A. develop B. adjective C. generous D. popular
2. A. beautiful B. important C. delicious D. exciting
3. A. element B. regular C. believing D. policy
4. A. punctual B. tolerant C. utterance D. occurrence
5. A. expensive B. sensitive C. negative D. sociable
6. A. education B. development C. economic D. preparation
7. A. attend B. option C. percent D. become
8. A. literature B. entertainment C. recreation D. information

1. Mary’s sister plays the piano better than her . ( as )

> Mary doesn't play the piano as well as her sister

2. Ann drives a car dangerously . ( dangerous )

> Ann is a dangerous car driver

3. Noone in the class is as tall as Long . ( tallest)

> Long is the tallest person in the class

4. I think apples aren’t so tasty as bananas . ( tastier)

> I think bananas is tastier than apples

5. Mr. Cuong plays soccer skillfully.

> Mr. Cuong is a skillful football player

6. Noone in the club is fatter than Janet . ( Janet )

> Janet is the fattest person in the club

7. Daisy doesn’t write so beautifully as her friends . ( more )

> Daisy's friends write more beautifully than her

8. Zidane is among the greatest football players in the world . ( one of the)

> Zidane is one of the most greatest football players in the world

9. Mrs. Chi is a quick typist . ( quickly)

> Mrs. Chi types quickly

10.Viet is a fluent English speaker .( fluently)

> Viet speaks English fluently

1. I wish I hadn't sold my bike

=> I reget selling my bike

2. no one told me about the change of plan

=> I am not told about the change of plan

3. Nigel felt sick from eating too many cakes

=> Nigel felt sick because she/he had eaten too many cakes

4. In the middle of our lunch there was a knock at the door

=> When we was having lunch, there was a knock at the door

5. Their game of badminton is always on Tuesday

=> They often play badminton on Tuesday / They are always playing badminton on Tuesday
6. Adrian wears jeans ll the time

=> Adrian is awlays wearing jeans all the time

I. Complete each sentences, using relative pronouns:

1. Mrs. Brown,...who..... is 45, as four children

2. This is the boy..who......studied with me in high school

3. Mary said something...which....I couldn't hear clearly

4. I don't know the name of the woman....whom....I met yesterday at the station

5. Mary,...who...sits next year to me, is good at math

6. That's the man..whom..Nelly gave the money to

7. Is this the ring...which...you were looking for

8. An orphan is a child...whose...parents are dead

9. Colin told me about his new job,..which..he's going enjoying very much

10. This morning I met somebody...whom... I hadn't seen for ages

I: Complete the sentence by choosing A,B,C or D

1: The toys ..... in blue is ten thousand dong.

A: Wrap B: Wrapping C: To Wrap D: Wrapped

2:Would you mind ..... the phone?

A: To answer B: Answering C: Answered D:Answers

3: When will the machine be ......?

A: To Make B: Make C: Made D: Making

4:The Man .... by the window is my uncle.

A: Sing B: Singing C: Sang D: is singing

5: I promise I ..... learn new words by heart.

A: Will B: Would C: Can D: Should

6: While Peter ..... television, his sister was cooking dinner.

A: Is Watching B: Was Watching C: Watched D: Watches

7: They asked me whether ..... to go out with them.

A: She wanted B: Did she want C: She wants D: Does she want

8: Linh arranged flowers the most .... is the contest.

A: Attraction B: Attractive C: Attractively D:Attract

III: Match a phrase in column A with a phrase in column B to make a comlete sentence.

1........f.....; 2....e........; 3......d......;
4.....a ...;5....c.........; 6......b......... .

IV: Write sentences, using the give words.

1: The student/ wear/ a blue shirt/ Tom

- The student wearing a blue shirt is Tom

2: The car/ make/ Japan/ expensive

- The car made by Japan is expensive

3: Would/ mind/ if/ use/ your computer?

- Would you mind if I used your computer?

4: Tom/ fall/ off/ the ladder/ while/ he/ paint/ the room

- Tom fell off the ladder while he was painting the room

cho tam giác đều ABC.Gọi O là trung điểm của BC.Trên các cạnh AB,AC lần lượt lấy các điểm di động M,N sao cho góc MON=60 độ.Chứng minh rằng:

a)Tích BM,CN không đổi

b)Các tia MO,NO lần lượt là các tia phân giác của các góc BMN và góc CNM

c)Chu vi của tam giác BMN không đổi

làm cho tớ câu c thôi ạ

People appear to learn in different ways. Some people expect to make mistake in their studies and capable (1)......of..... benefiting from their mistake. They don't mind (2).........being...... corrected by their teacher and indeed often ask to be corrected. Others, (3)......however........, dislike making mistake. They try to avoid doing anything(4)......which......... they might do badly. They would (5).....rather............ perfect somthing small steps and be sure they have got it right than attempt to do task (6)..based.......... on a subject they don't feel they have finished exploring yet. Both (7)......ways..... of learning seem to be equally valid, but a combination of the two may be the (8)...best......... solution. In order to learn effectively, students have to remember to take risk sometimes. But they also have to feel comfortable and secure with (9)..what........ they're doing so as not to become demotivated. All students should at (10)....least..... think about questioning the way that they approach learning.

1.in

2.on

3.to

4.about

5.with

6. on

7.to

8.of

9.from

10.to

41. A

42. B

43. A

44. A

45. B

46. B

47. B

48. B

49. A

50. B