Chọn đáp án đúng điền vào chỗ trống:

Since their appearance, books are a previous ________ of knowledge and pleasure.

III. Choose A, B, C, or D that best completes each sentence.

________ is the process by which a piece of land becomes dry, empty, and unsuitable for growing trees or crops on.

Choose the best answer.

___ hard he worked, he couldn’t earn enough money to support his family.

Choose the correct answer.

I wanted to go a more ________ route across Montana.

Chọn từ thích hợp điền vào chỗ trống:

Keep quiet. You _______ talk so loudly in here. Everybody is working.

Choose the correct answer.

Tính từ “to lớn, khổng lồ” trong tiếng Anh là gì?  

Chọn đáp án đúng để hoàn thành câu:

________ in simpler words?

III. Choose A, B, C, or D that best completes each sentence.

To ________ a desert is a dangerous activity which requires careful preparation for risks.