№3
1) musnt
2)can
3)neednt
4) have to
5) cant
6) will have to
№4
1) For what London is famous for?
2) -
3) Where did Tim take a lot of photos yesterday?
4)Who have bought cakes and fruits for the party?
5) Where will their parents have to go on Saturday?
6) Why will Jess make a presentation on the wonders of nature?