Відповіді: Стр.35 (C)

C. Join the sentences using when or while.

1. Thomas was talking on the phone when the accident happened.

2. We heard a noise while we were walking in the forest.

3. Becky was doing her homework while Alice was surfing the Net.

4. When I saw the huge dog, I ran for help.

5. Mary was on the bus when her brother called her.

6. Luke was making a salad while his sister was making sandwiches.