As students, we should work hard and do ________ best to realize our dreams. 

---How was their last weekend? ---Great. They had a picnic in the park and enjoyed _______.

The black bag isn’t_______. It’s________.

I found there was only one copy of “Bighead Son and Small-head Father” on the bookshelf, so I decided to buy _______ at once.

The girl dresses _________ when she gets up.