find and correct the mistake in each sentence. ​

1. My mum and my dad was playing in the sand
with my sister.

• My mum and my dad were playing in the
sand with my sister.

2. You not have to go if you don't want to.
• You don't have to go if you don't want to.

3 We mustn't run. The train doesn't go for an
hour.
• We mustn't run. The train doesn't leave for
an hour.

4 You must to be careful. It's very dangerous.
• You must be careful. It's very dangerous.

5. I played football when I broke my leg.
• I was playing football when I broke my leg.

6 Yesterday the sports shop was sell them for
only £15.
• Yesterday the sports shop was selling
them for only £15.