Finish each of the following sentences so that its meaning stays the same

Finish each of the following sentences so that its meaning stays the same.
1. My mother is younger than my father.
My father _________ _____________________________________________________________
2. Thao is the best at English in her class.
Nobody in Thao’s class ____________________________________________________________
3. It is not good to stay up so late to watch movies.
You shouldn’t ___________________________________________________________________
4. It's good if children go to bed early.
Children should  __________________________________________________________________
5. It is wrong of you to cheat in exam.
We mustn’t _______________________________________________________________________