– How to be a greener person?
– Keep our environment clean. Don’t _______ any litter.
A. throw away B. pick up C. put on
She likes tennis and she thinks it’s ______ of all sports.
| A．interesting | B．more interesting |
| C．most interesting | D．the most interesting |
I want ______ some bird-watching this weekend.
| A．do | B．did | C．doing | D．to do |
______ is waiting for you at the gate. She’s got a letter for you.
| A．Nobody | B．Anybody | C．Somebody | D．Everybody |
— ______ I have some more cake?
— No, I’m afraid you can’t.
| A．Must | B．Can | C．Should | D．Need |
Jim likes coffee ______ I prefer tea.
| A．or | B．because | C．but | D．so |