Put the verb in brackets into the correct from

Put the verb in brackets into the correct from: GERRUND or INFINITIVE :
1. the traffic was very heavy this morning ,but I
 manage .......( get) to school on time.
2. I have put off ..........(write) the letter so many times, I really must do it today.
3. Tuan gave up.......(try) to find a job in this country and decided.........(go) abroad.
4. How long have you been able .........(swim), John?
5. You must promise...........(not / be) late again
6. When I saw her in that funny hat, I couldn't have .........(laugh).
7. However, she did not plan.........(be) a secretary all her life.
8. But she couldn't imagine........(do)  the same job for years and years.
9. She often remembered ........(talk)  to her father before he became ill.
10. You must remember buy some sugar . We haven't got any now.