Here are the appropriate forms of the verbs for your sentences:

1. Linh got used to (live) **living** in a big city.
2. If you are lazy, you (not become) **won't become** a good student.
3. Would you like something (drink) **to drink** with that?
4. I can’t remember where I (leave) **left** my key last night.
5. We needn't (come) **come** tomorrow.
6. He couldn’t make his motor bike (start) **start** this morning.
7. I dislike (listen) **listening** to music while I (do) **do** my homework.
8. These tigers used (keep) **to keep** in iron cages.
9. What you (do) **did** when I (phone) **phoned** you last night?
10. When we entered his room, we (see) **saw** him (sleep) **sleeping** in an armchair.