Rewrite:
1.We should get up early to walk to school.
->It's a good .....................
2.He needs to excercise about 1 hour a day to live longer.
->It's...............................................
->It's a good................................................
3.Students need to revise new words regularly
->It's.............................
->Revising..........................
->It's a good.............................
1. It's a good idea to get up early to walk to school.
2. It's a good idea for him to exercise about 1 hour a day to live longer.
It's necessary for him to exercise about 1 hour a day to live longer.
3. It's necessary for students to revise new words regularly.
Revising new words regularly is necessary for studnets.
It's a good idea for students to revise new words regularly.
Giúp mih vs mn ơi !!