viết câu bằng cách sử dụng các từ gợi ý

1. Please/ not go out / until / rain / stop.

2. I / always / get on/ first bus / and / arrive / school / 7.30

3. I / look forward / see / you / soon.

4. Mother / used / getting / early / morning.

5. Arrive / Ha Noi / twenty minutes' time.

Viết lại câu

1.  I don't have any friend here.

=> I

2. She knows a lot more about than I do.

=> I don't know

3. Does this camera belong to you ?

=> Do

4. Walking in the rain gives my brother pleasure.

=> My brother enjoys

Viết dạng đúng của từ

1. Gas and oil (consume) always increases in cold weather.

2. Lan ran (excite) down the hall to greet her cousins.

Tìm lỗi sai và sữa lỗi

1. Don't throw these things away because they can be making into new products

2. To take part active in this charity program, I suggest saving money and helping the poor in our neighborhood.

3. I think that these ordinary light bulbs should be replaced of energy-saving bulbs.

Viết lại câu

1. Although it rained heavily, we went to Hoa's birthday party.

=> In spite

2. Despite his intelligence, he doesn't study well at school.

=> Even

3. The owners of the restaurants are usually very rich.

=> The people who

4. Their wedding was held in a very lovely church.

=> The church which

Cho đường tròn (O;5cm) và dây cung AB dài 6cm, gọi I là  trung điểm của dây cung AB. Tia OI cắt cung AB tại M. Tính OI và AM

Tìm lỗi sai và sửa lỗi

1. Mr Brown, his picture you saw in the newpaper, lives next door to us

2. Most babies will grow up to be as clever than their parents.

3. You had better to learn a foreign language before applying for a job.

4. Do you mind to go out with me to buy some ice-creams?

Một loài sinh vật,xét n cặp gen phân li độc lập, mỗi gen có 2 alen trội lặn hoàn toàn. Cho cơ thể P dị hợp tử n cặp gen tự thụ phấn, thu được F₁. Theo lí thuyết, F₁ có kiểu hình phân li theo tỉ lệ là

A. (2:1)ⁿ.

B. (3:1)ⁿ.

C. (4:1)ⁿ.