3 Find and correct the mistake in each sentence.
1 My mum and my dad was playing in the sand with my sister.
2 You not have to go if you don't want to.
3 We mustn't run. The train doesn't go for an hour.
4 You must to be careful. It's very dangerous.
5 I played football when I broke my leg.
6 Yesterday the sports shop was sell them for only £15.
va roogggg am nevoie dau coroana ​