Each year quite a lot of food ______ around the world. It’s really time for us to do something.
A. was wasted B. is wasted C. wasted C. will be wasted
The class _______ in two minutes.
| A．begin | B．will begin |
| C．beginning | D．begins |
My teacher often encourages us ______ hard.
| A．study | B．to study |
| C．studying | D．studies |
They have ______ their homework already.
| A．finish | B．finishes |
| C．finished | D．finishing |
—________?
—Yes, I’m looking for a pen.
| A．Can I help you | B．What are you doing |
| C．What do you want to buy | D．What do you like |
—Happy birthday to you, Mary!
—________.
| A．Thank you | B．I’m happy |
| C．Sure | D．The same to you |