Complete the sentences with the infinitive or -ing form of the verbs in brackets.
1. - i've just seen tom. he looked very annoyed. what's wrong?
- i don't know. we were watching a film. suddenly he switched off the telly and left without
( (say) a word.
2. - i don't like the way he talks to me. i want him ( (change) his attitude.
3. it's your own fault, you know. and there's no point in ( (complain).
we just need to think of something to improve the situation.
4. i have always felt difficulty in ( (talk) to people whose company i do not enjoy.
5. when george heard the noise in the kitchen, he headed downstairs ( (see) who was there.
6. my brother, jeff, was awarded first prize in the maths contest, but i wish he wouldn't keep ( (boast) about it!