Change into passive voice.

1. We are going to rebuild our house.

2. He continued to make his plan.

3. I will have to finish my grammar exercise soon.

Change into passive voice.

1. I will meet my parents tomorrow.

2. My teacher will give me a pair of shoes.

3. My mother must buy us a cushion.

4. I ought to change my way of studying.

5. My mother used to spend a lot of money on my studying.

6. My father needs to buy some appliances

Change into negative and interrogative:

1. I shall go there tonight.

(-)

(?)

2. We shall come back soon.

(-)

(?)

3. Nam and Lan will visit Hue tomorrow.

(-)

(?)

4. I can play soccer.

(-)

(?)

5. We may return home early next week.

(-)

(?)

6. My parents must go to Hue now.

(-)

(?)

7. I have to study harder.

(-)

(?)

8. We ought to stay up late.

(-)

(?)

9. I used to go to bed late.

(-)

(?)

Change the following sentences into the Active voice (thì quá khứ tiếp diễn)

1. The garages are cleaned everyday.

2. Mr Johnson is being interviewed at the moment.

3. Fortunately, the machinery wasn't damaged.

4. The outside of the ship was being painted when the accident happened.

5. He has been give a lot of money.

6. Newspapers are sent to Scotland by train.

7. Your shoes are being mended at the moment.

8. All the letter were posted yesterday.

9. My room was being cleaned at this time yesterday.

Change these sentences into the passive voice (thì quá khứ tiếp diễn)

1. They are broadcasting the world cup soccer game all over the world.

2. Some one was making coffee when I walked into the kitchen.

3. The teacher is giving a test in the next room right now.

4. Jack was reading a book when I arrived.

5. The committee is considering that proposal at the moment.

6. Tom was painting this fence at 9 o'clock yesterday morning.

7. They are teaching English in this school.

8. We're they listening to the lecture yesterday evening?

9. A mechanic is repairing Bill's car at this time.

10. My father was fixing the car yesterday afternoon.

Rewrite the following sentences in the active voice:

1. The books were taken by John.

2. The boxes were mailed.

3. The two packages were opened by my secretary.

4. Our homework was corrected by my teacher.

5. Was the machine checked by the inspector?

Change into the passive voice:

1. They didn't invite Bill and Ann to the party.

2. Someone stole all her valuable jewelry last night.

3. Miss peter wrote all of the reports for Mr.

4. He read the letters to all his friend yesterday.

5. She taught English to her sister last year.

Cho y=1/4 x (D1)

y= -x+2 (D2)

a) Vẽ (D1), (D2). Tìm toạ độ giao điểm M.

b) Lấy B trên (D1) có hoành độ là -4. Viết phương trình đường thẳng

(D3)//(D2) và đi qua B.

*(D3) có dạng y=ax+b

Tam giác ABC cân ở A, góc A tù, D thuộc cạnh BC, DB<BC.

a) Vẽ đường tròn (O) đi qua B, D có tâm trên cạnh AB

b) Dựng (O') đi qua C, D có tâm trên cạnh AC

c) ΔODO' là hình gì?

d) Chứng minh (O) và (O') cắt nhau

e) Gọi E là giao điểm của (O) và (O').

Chứng minh EA//OO'

g) Tính ∠AED

h) Điểm I ở vị trí nào trên cạnh BC thì AD là tiếp tuyến của (O)

Cho (O;R) và điểm A với OA=2R, hai tiếp tuyến AE, AF của (O).

a) Chứng minh ΔAEF đều. Tính cạnh theo R.

b) Đường thẳng OA cắt (O) tại B và C (theo thứ tự A, B, C). Tứ giác AECF lầ hình gì? Tính diện tích AECF theo R.

c) Từ O, kẻ đường vuông góc với OE cắt AF tại M.

Chứng minh ΔMOA cân, suy ra BM là tiếp tuyến của (O). Tính AM theo R.

d) Tính tỉ số S ΔOAM / S ΔOFM (không tính diện tích từng tam giác).