EF A2: infinitive with to OR verb + ing

I can't promise (a)   (be) on time.

Do you mind (a)   (not talk) so loudly?

 (a)   (swim) is better exercise than running.

It was very interesting (a)   (see) my old school friends again.

Would you like (a)   (come) to a concert on Saturday?

Duncan works at weekends (a)   (earn) more money.

On Sundays, Emma likes __________and __________ (relax, not do) anything.

(a)  

We were unhappy with the service, so the restaurant offered (a)   (give) us a free dinner.

ls it difficult (a)   (learn) Japanese?

James is very competitive. He thinks - (a)   (win) is the most important thing.