3. Put the verbs into (to) Infinitive or -ing form.

1) She can't imagine him being a firefighter. 2) We didn't want him to disturb them. 3) We don't mind opening the window. 4) He gave up smoking. 5) The song is worth singing. 6) Would you prefer to start? 7) She fancies going out tomorrow. 8) It's too difficult to do diving. 9) He promised me to return the glasses. 10) Avoid dressing smart.