Question

Don't have to and mustn't These sentences are wrong! Correct them using don't/doesn't have to or mustn't 1)People have to touch the paintings in an art gallery 2) A teacher has to wear a uniform 3)You have to put cheese in an omelette. 4)If you've got a computer you have to write with a pen 5) I have to be late for my job interview tomorrow 6) You have to talk to other students when you're doing an exam 7)An actor has to be good at maths and science

Answer 1

1. don't have
2.doesn't have
3.don't have
4.If you don't have a computer, you have to write with a pen
6.you mustn't to talk to other students when you are doing exam 
5.mustn't
7.doesn't
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