Các bạn ơi, bài này người ta bảo viết kết quả dưới dạng phân số tối giản. Vậy nên, chắc chắn là bạn Hồ Thị Thuỷ Trúc làm sai. Mình gặp rồi nên biết mà, đúng không Bảo Nguyên.

Tick nha các bạn! Mình cảm ơn nhiều.

I. viết lại câu sau sử dụng adj + to v/ nouns clause

1. She/ sad/ not/ get good marks/ final test

->She is sad not to get good marks in final test

2. We/ surprized/ see june/ the party

-> We are surprized to see june in the party

3. We/ pleased/ you/ do/ it/ perfectly

-> we are pleased you to do it perfectly

4. It/ not/ good/ art the trees

-> It is not good to art the trees

5. You/ silly/ believe/ Tom

->you are silly to believe at Tom

6. They/ delighted/ we/ interested/ pretecting the environment

-> They are delighted that we interested in protecting the environment

7. It/ difficult/ understand/ him

-> It is difficult to understand him

8. Annie/ clever/ get to the airport early

->Annie is clever to get to the airport early

9. T.v/too exepensive/ buy

->TV is too expensive to buy

10. The world "sixth"/ hard/ pronoun

-> the world ''sixth'' is hard to pronoun

II. viết lại các câu sau sử dụng adj + to v

1. She washed a white shirt with a red one. She wass wrong.

-> she was wrong to wash a white shirt with a red one

2. Jane listened to mark. She was silly.

-> Jane was silly to listen to mark

3. I like to watch that film. It's very interesting

-> that film is very interesting to watch

4. John got two letters this morning. She was surprised.

-> John was surprised to get two letters this morning

5. I will win the game. I'm sure

-> I am sure to win the game

6. They can't walk to home. They are too tired

-> they are too tired to walk to home

7. She sat on her glasses. She was stupid.

->she was stupid to sit on her glasses

8. You lent money to Jack. You were crazy.

->you are crazy to lend money to Jack

9. I remembered your phone number. I was early

-> I was early to remembered your phone

10. He didn't pass the driving test. He was sad.

-> he was sad not to pass the driving test

I was standing right next to her but she didn't recognize me.

a) xét 2 tam giác , ta có :

\(\stackrel\frown{E}\) = \(\stackrel\frown{D}\)= 90

=> tam giác vuông

\(\stackrel\frown{A}\) chung

AB=AC

=> 2 tam giác bằng nhau(g-c-g)

b, xét 2 tam giác ABH và ACH

AB=AC

AH chung

góc B = góc C

=> 2 tam giác bằng nhau

=> đpcm

c) Áp dụng định nghĩa của trọng tâm tam giác => AH > HC

tớ gửi lời kết bạn rồi đó tick tớ đi

1.People must dry the beans in the sun

The beans must be dried in the sun

2.We haven't finished our homework yet.

Our homework hasn't been finished yet

3.The Chinese invented paper in the first century AD.

Paper was invented in the first century AD by the Chinese

4They will show this machine to the public when it is finished

This machine will be shown to the public when it is finished

5.Did they discover Australia at the end of the 16th century?

Was Australia discovered at the end of the 16th century?

a) có 3 góc vuông từ gt => hình chữ nhật
b) vì ADME là HCN mà I là trung điểm của DE => I cũng là trung điểm của AM ( tính chất hình chữ nhật ) => A, I, M thẳng hàng
c) kẻ AH vuông với BC => DE nhỏ nhất khi M trùng với H ( tính chất đường vuôn góc và đường xiên)
phần tính thì bạn chỉ cần áp dụng định lý pitago --> ct ah=bc => DE = 12

Cấu trúc:
Khẳng định (positive): S + V + as + adj/adv + as + N/pronoun
Phủ định (negative): S + V + not + so/as + adj/adv + N/Pronoun
Ví dụ:
She is as beautiful as her sister
He is as stupid as his friend

Tính từ ngắn (Short Adj):S + V + adj/adv + er + than + N/pronoun
Tính từ dài (Long Adj): S + V + more + adj/adv + than + N/pronoun
Ví dụ:
He is taller than his father.
She speak English more fluently than her friend.

Chú ý:
- Những tính từ ngắn kết thúc bằng một phụ âm mà ngay trước nó là nguyên âm duy nhất thì chúng ta nhân đôi phụ âm lên rồi thêm "er" trong so sánh hơn và "est" trong so sánh nhất.(ex:hot-->hotter/hottest)
- Những tính từ có hai vần,kết thúc bằng chữ "y" thì đổi "y" thành "i" rồi thêm "er" trong so sánh hơn và "est" trong so sánh nhất(ex:happy-->happier/happiest)
- Những tính từ/trạng từ đọc từ hai âm trở lên gọi là tính từ dài,một âm gọi là tính từ ngắn.Tuy nhiên,một số tính từ có hai vần nhưng kết thúc bằng "le","et","ow","er"vẫn xem là tính từ ngắn (ví dụ: slow--> slower)

1.I think Tom should be offered the job

2. This is a washing-machine