1. Choose the correct verb form in each of the following sentences.

(Chọn dạng động từ đúng trong mỗi câu sau.)

1. While Lan was working / worked as a volunteer in the countryside, she met an old friend.

2. I was revising for my civics class when my dad was telling / told me about the volunteer Job.

3. We saw many unhappy children while we were helping / helped people in remote areas.

4. He was sorting the donations when he was realising / realised how generous people were.

2. Complete the following sentences using the correct forms of the words in bold in 1.

(Hoàn thành các câu sau sử dụng dạng đúng của các từ in đậm ở bài 1.)

1. Joining the WTO has helped Viet Nam _________ its economic growth.

2. Viet Nam _________ foreign investors in various parts of the economy.

3. We _________ to use the donations effectively We have signed an agreement on this.

4. This environmental organisation _________ to protect local forests. It has a detailed plan to achieve this.

5. We need to improve the quality of goods and services so that they can _________ new markets.

2. Put the verbs in brackets in the correct forms.

(Hoàn thành các câu sau bằng cách sử dụng nguyên mẫu có to hoặc nguyên mẫu của các động từ trong ngoặc.)

1. If tourists buy local products, more of their money (stay) ______ in the community.

2. If we lived in the countryside, we (grow) ______ our own vegetables.

3. If my grandmother (be) ______ still alive, she (be) ______ a hundred today.

4. If people (give) ______ up flying, they (reduce) ______ their carbon footprint.

1. Listen to the sentences and circle the word with the stress you hear.

(Nghe các câu và khoanh chọn từ với trọng âm mà bạn nghe được.)

1. The centre keeps a record of all donations.

a. 'record             b. re'cord

2. We will record the charity live show for those who can't watch it live.

a. 'record             b. re'cord

3. There was an increase in house prices last year.

a. 'increase          b. in'crease

4. We want to increase students' interest in volunteering at the community centre.

a. 'increase         b. in'crease

5. I got this present from a visitor to our centre.

a. 'present          b. pre'sent

6. We need to help local businesses to export their products.

a. 'export            b. ex'port

1. Match the two parts to make complete sentences.

(Ghép hai phần để tạo thành câu hoàn chỉnh.)

3. Read the Learn this! box. Complete the rules.(Đọc hộp Learn this! Hoàn thành các quy tắc.)

LEARN THIS! Past simple (negative and interrogative)

a. We form the negative form of the past simple with (1) _____ and the infinitive without to.

I didn’t go out last night.

b. We form the interrogative form of the past simple with (2) _____ and the infinitive without to.

Did Harry text you? Yes, he did. I No, he didn't.

c. We do not use did/ didn't with the verbs (3) _____ or (4) _____

Was Joe late for school? Yes, he was.

Could you read when you were three? No, I couldn't.

Choose the correct word to complete each sentence.

(Chọn từ đúng để hoàn thành mỗi câu.)

1. Many wildlife habits / habitats will be destroyed if people keep cutting down the forests.

2. Researchers are looking for ways to reduce the environmental impact / affect of air pollution on the local community.

3. It’s illegal to kill pandas, tigers or any other dangerous / endangered animals.

4. Global warming / climate is mainly caused by pollution and clearing of forests.

2. Complete these sentences with the highlighted words in 1.

(Hoàn thành các câu sử dụng các từ được làm nổi bật ở bài 1.)

1. We can help local artists make a ________ by buying handmade arts and _________.

2. Many tourists are not ________ of the ________ of their actions on the local community.

3. Both local people and tourists should be ________ for protecting the environment.