Teachers always expect their students to realize that hard work ________. [ ]

We enjoyed the flowers in the park，and had________great fun yesterday—GreatBut it’s________great pity that I didn’t join you

It must be a (n)_____. You know it is April Fool’s Day today.

The president has told his friends that heis sick but will not admit it _____

A child _____ parents are dead is called an orphan.