Use appropriate tense in the blanks 2

Are these sentences correct? If not, please help me with them. Thanks?

21) Dad has a number of jobs in the last few years.

22) Our daughter has been wearing lipstick since she was sixteen.

23) She is angry because her boyfriend has not shown up yet and she has been waiting for half an hour.

24) I'm still waiting for an answer. They have not made up their mind yet.