Em hãy giải thích sự tạo thành các giọt nước bên ngoài cốc trà đá

Trên nửa mặt phẳng có bờ chứa tia Ox, hãy vẽ

xOy=40 độ ; xOz=110 độ

a) Trong 3 tia Ox, Oy, Oz tia nào là tia nằm giữa 2 tia còn lại ? Vì sao?

b) Tính yOz

c) Vẽ tia Ot là tia đối của tia Oz. Tia Ox có phải là tia đối của góc zOt không? Vì sao?

Make the questions for the underlined words:

1. It is about 500m from my house to the school.

2. The remote control in on the armchair.

3. There are about 9 channels of Vietnam Television.

4. The main character is very beatiful and clever.

5. She didn't go to school yesterday because she was sick.

6. The teacher was angry because he didn't do his homework.

7. The film ends at 11pm.

8. The homework was very diffirent yesterday.

9. She often does the house work after doing exercise.

1. I missed the bus so I was late for school.(Because)

2. He often tells lies, so she doesn't want to play with him.(Because)

3. We go cycling everyday. We protect the environment.(If)

4. People will use recycled materials. They will save energy.(If)

5. There will be a smart clock and a hi-tech fridge in my future house.(My future house will)

Make the questions for the underlined words:

1. My brother returned to America last week.

2. Phuc will go on a picnic this weekend.

3. I have ever travelled to Nha Trang by coach.

4. The shirt looked very nice.

5. Tam bought this bag at the shop over there.

6. My sister is playing the piano in the living room now.

7. Anna will go to the shopping mall tomorrow.

8. I will go on a picnic if it is fine tomorrow.

9. Peter is watching TV in the living room now.

10. His mother will give him a new skate board on his next birthday.