4 T asks Ss to underline the subject(s) and the verb(s) of each sentence to see if it is a simple or a compound sentence. T may also allow Ss to translate the sentences into Vietnamese. The translation helps: i) to make sure Ss understand the meaning of the sentences; and ii) to decide the tense of the verbs in the sentences.

Ss do the exercise. T checks before letting Ss do the matching.

Key:

Picture 1:

1. They water and take great care of the trees during the first month.

5. This activity is often done in spring.

6. They dig a hole to put the young tree in.

Picture 2:

2. They carry recycled bags to put the rubbish in.

3. The community organises this activity once a month.

4. They walk along the beach and collect all the rubbish.