Infinitive/-ing forms
1)John likes _____(drive) at a high speed.
2) You should avoid______(swim) with a full stomach.
3)Alex doesn’t mind______(walk) to his office on chilly days.
4)She’d prefer_______(solve) this problem on her own.
5)You must always________(take) your keys with you.
6)Stephen is busy_______(talk) on the phone.