Scientists have ________ a lot of research into renewable energy sources.

Choose the best answer.

Do you know ______ language is spoken in Kenya?

Captain Henry, _______, crept slowly through the underbrush.

By the age of 15, teenagers are better able to________a more demanding curriculum.

Before doing something important,Vietnamese people always try to choose ____ time for it.

China is by far the most ______country in the world. (population)

Mark the letter A, B, C, or D to indicate the most suitable answer to each of the following questions.

By the time John arrived, all his friends _____________.

Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Change the way you learn vocabulary, and you can improve your English.

→ If you _____________________________________________________.

How many students are there in your school?

→ How many students does _________________________?

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Supply the correct form of the verbs in the blanket.

Bad driving _______ (cause) many accidents so far.

Being self-reliant is what many young people__________.

Children are allowed to have a voice in decision making in the family. We are pleased about that.

Bill and Duong are in a coffee shop.

- Bill:      “Can I get you another drink?”

- Duong: “____________”

Rewrite sentences without changing the meaning

How many people are there in your family?