60) Zero conditional 7 Match the two halves of the sentences. - 6.6 a ifl don't tidy my room. 1 lfl eat too much, 2 If it rains, b you get good marks. 3 My mum gets cross C I feel ill. 4 If you exercise regularly. d if you turn off the lights. 5 You save electricity e I take the tram to school. 6 If you study hard. f you stay fit and healthy 8 Complete the sentences. Use the correct form of the verbs in brackets. 6.6 1 If you two books, you one free. (buy, get 2 The menu on the screen if you this button twice. (appear, press) 3 If dogs chocolate, it them ill. (eat, make) 4 If water (freeze, expand) 5 If you water to 100° C.it (heat, boll