The tortoise runs _,but it doesn't stop until to the end.(slow)
问题描述：
The tortoise runs _,but it doesn't stop until to the end.(slow)
We should finish doing our homework before 9:00 p.m.=It is _ _ _ _ finish doing our homework before 9:00 p.m.
If you want your dog to be healthy,you should walk him once a day.=If you want to _ your dog _,you should _ him _ a walk a day.
答
slowly
necessary for us to
keep healthy,take,for