нужно React to the following situations using shouldn’t / shouldn’t + Perfect Infinitive (for expressing critics or disapprovement) or needn’t / needn’t + Perfect Infinitive (for expressing the absence of necessity).

e.g. They talk at the lesson. – They shouldn’t talk at the lesson.
They talked at the lesson. – They shouldn’t have talked at the lesson.
e.g. He phones me every day. – He needn’t phone me every day.
He phoned me every day. – He needn’t have phoned me every day.

1) These people are waiting for us.
2) This man bothers us all the time.
3) My brother asks me too many questions.
4) Our chief often gives us advice.
5) She always worries about her children.
6) You look tired because went to bed very late yesterday.
7) I ate too much chocolate and now feel sick.
8) You washed this shirt but it wasn’t dirty.
9) I bought the cheese which was necessary.
10) I left home without an umbrella and got wet.