1.How long have you learnt English ?

2. I haven't visited my grandparents for a long time.

1. If we meet at 9:30, we will have plenty of time.

2.  If you find a skeleton in the cellar, don't mention it to anyone.

3. The zookeeper would have punished her with a fine if she felt the animals..

4. If you pass your examination, we will have a celebration.  

5.  Lisa would find the milk if she looked for it in the fridge.

6. What will happen if I press this button?

7.  The door will be unlocked if you press  the green button.

8.  I should have voted for her if I had had a vote then.

9.  If you go to Paris, where will you stay ?

10.  If you swim in this lake, you'll shiver from cold.

11. If someone offered to buy you one of those rings, which would you choose?

Đổi : 2 giờ 30 phút = 2,5 giờ 

Vận tốc của người đó là :

     80 : 2,5 = 32 ( km/giờ )

              Đáp số : 32 km/giờ

She has been a teacher english since 1995.

We hasn't seen each other for five months.

what would you  do if you were me ?

Mr. bill used to go swimmig when he was young.

I'm very tired.I want to go home now.

What time does your mother finish work every day?

Does James laugh they?What's so funny?

Nguyên nhân chủ yếu làm cho tỉ lệ dân thành thị nước ta ngày càng tăng là

A. chính sách phân bố lại dân cư giữa các vùng

B. chất lượng cuộc sống ở thành thị tốt hơn

C. quá trình công nghiệp hóa

D. dân nông thôn ra thành thị tìm việc làm