Hoàn thành câu:

1. My father/have/terrible tôthache/ưhen/he/be/small/.

2. Minh/play/tennis/since/he/be/eight/years old/.

3. Do/you/know/who/invent/the telephone/?

4. I/have/problems/computer/.

5. He/not know/how/use/computer/.

6. My father/be/good/use/computer/.

7. Students/can talk/each other/Internet/.

8. While/I/walk/to/school/I/see/an/accident/.