The government requires that every primary school student do sports for at least one hour every day.— _____. It is high time that students took exercise in order to build a strong body.

What will Sam when his wife dies

He is feeling even worse.— That is because he ________ to follow the doctor’s advice then.[ ]

He said l5 people_______，two of them_____to hospital．

下列各句中，没有语病、句意明确的一项是（ ）