Complete the sentence so that it means the same as the one in the left-hand column.
It's a pity they missed our party. They should…. it
It's a shame you didn't come on time for the exam. You ought to…. on time for the exam.
There was no need to do what mum said. We have do what mum said.
That was a rude thing for kids to say. Kids should that.
It wasn't necessary for my sister to come. My sister needn't come