1. More than a hundred people in Afghanistan (kill) ....were killed................by natural disasters in 2017. 2. The problem of natural disasters (discuss)......will be discussed...................by the students tomorrow. 3.After Nick (do)......had done................his homework, he (go)....went...............to bed last night.

4. Mai (live).......had lived.................in Hai Phong for five years before she (move)....moved.......................to Ha Noi three years ago. 

5. By the time I (get)................got...........to Nick's house his party (already/start)...had already started.......................

6. When we (come)..............came...............back to our home village last month, it (change).......had changed....................so much.

7. ..........................Had they gone...............(they/go) home when you arrived?

8. They (not have)......hadn't had ................. breakfast when I got up.

II. Rewrite the sentences.

1. David had gone home before we arrived.

- After..David had gone home, we arrived................................................................

2. We had lunch when we took a look around the shops.

- Before...... we took a look around the shops..,We had lunch., ......................................................

3. The light had gone out before we got out of the office - When..........The light had gone, ...............................we got out of the office..................

1. were killed

2. will be discussed

3. had done - went

4. had left - moved

5. got - had already started

6. came - had changed

7. Did they go

8. didn't have

II.

1. After David had gone home , we arrived.

2. Before we took a look around the shops, we had lunch.

3. When we got out of the office, the light had gone out.