Writing. Task 1. Use the correct form of modal verbs 1. You a) doesn't have to c) don't have to 2.Pete's eyes are very bad, and he a)mustn't c)have to 3.School starts at eight o'clock, so we (not run). You won't miss the bus. b) have to wear glasses. b)has to get up early. b) mustn't a) must c) don't have to