3. ____________________________ , ______________________________.

4. ____________________________ , ______________________________.

Worksheet 4.20

b. Sequence the following sets of series of events with ‘when’. Use ‘when’ both in the irst part and the second part of the sentences.

1. Melati and Isabel went hiking to Mount Batur with their parents. They saw some plastic bottles and bags along the way.

Melati and Isabel saw some plastic bottles and bags when ____________________.

When Melati and Isabel went hiking to Mount Batur with their parents, ______________________________.

2. A team of scientists sailed in the ocean near Costa Rica. They saw an injured sea turtle.

_______________________________ when _____________________________.

When __________________________ , ________________________________.

3. The scientists found a wrinkled and brownish plastic straw. The object came out.

__________________________________________________________________.

________________________________ , _______________________________.

4. Melati and her sister called for help to pick up the trash. A storm washed up tons of plastic trash onto Kuta Beach.

__________________________________________________________________.