1. Rewrite the following sentences, beginning as shown, so that the meaning stays the same.

(Viết lại các câu sau, sao cho nghĩa vẫn giữ nguyên)

2. Put the following words in the correct order to make meaningful sentences. Add commas if it is necessary.

(Đặt các từ sau theo đúng thứ tự để tạo thành các câu có ý nghĩa. Thêm dấu phẩy nếu cần thiết)

3. Each part (marked 1, 2,...) of the following passage has a mistake. Underline and correct it.

(Mỗi phần (được đánh dấu 1, 2, ...) của đoạn văn sau có một lỗi. Gạch chân và sửa nó.)

SAVE THE EARTH

1. 0.      We are slow destroying the Earth. The seas and rivers are too dirty to
   1. swim in. There is so many smoke in the air that it is unhealthy to live in
   2. many in the world's cities. In one well-known city, for example
   3. poisonous gases from cars pollute the air so that traffic policemen has
   4. to wear oxygen mask.
   5. We have cutted down so many trees that there are now vast areas of
   6. wasteland all over the world. As a result, farmers on parts of Africa cannot grow
   7. enough to eat. In certain countries in Asia there are too little rice.
   8. Moreover, we do not take enough careful of the countryside. Wild animals
   9. are quickly disappear. For instance, tigers are rare in India
   10. because we have kill too many for them to survive. However, it isn't
   11. simply enough to talk to the problem. We must act now before it is too
   12. late to do anything about it. Join we now. Save the Earth. This is too
   13. importance to ignore.