Look! A large group of birds are flying __________the mountain!
| A．past | B．through |
| C．over | D．across |
It takes Mr Wang 20 minutes ______________ lunch every day.
| A．cook | B．to cook |
| C．cooking | D．cooks |
—Jack, your hair is too long! —Really? I’ll have it _____ right now.
| A．cuts | B．cutting | C．to cut | D．cut |
We often see Betty ____ the old man with his housework.
| A．help | B．to help | C．helped | D．helping |
You’d better stop ________ .You look too tired.
| A．work | B．working | C．to work | D．worked |
My teacher encouraged me _______ more books.
| A．reading | B．to read | C．to reading | D．read |