giúp mình với mn ơi

1. People in the countryside live more happily than in the city.

$S_1$ + V + adv + er/more + adv + than + $S_2$.

2. Who plays a more important role in a Giarai family ?

Who + V?

3. Mr Minh doesn't work as carefully as Mr.Nam.

$S_1$ + V + adv + er/more + adv + than + $S_2$.

→$S_2$ + not + V + as/so + adv + as + $S_1$