Put the verbs in brackets into the -ing form or the infinitive.
3) A: Don't you hate....... (not/know) anyone here?
B: Yes, I get very lonely, but I hate...... (worry) my parents so I tell them I've made lots of friends.
4) A: I'll never forget......... (visit) Thailand for the first time.
B: Yes, it was such a wonderful holiday. If only I hadn't forgotten....... (take) my camera.