—Why did Mr. Green take his 7th grade students to the river yesterday afternoon?
—________ the river.
A．Cleaned up B．Cleaning up
C．To clean up D．Clean up
The government promises that relief materials ________ to the flood-hit areas in no time.
A．will be rushed B．will rush
C．have rushed D．have been rushed
—Did you see ________ man in ________ black pass by just now?
— No, sir. I was reading a newspaper.
A．the; the B．the; a C．a; the D．a; /
When our ancestors were hunters and gatherers 10,000 years ago, they didn’t have time to wonder much about ________ but finding food.
A．everything B．anything
C．nothing D．something
His wife was busy cooking while he watched TV ________ comfortably in the sofa.
A．seat B．to seat C．seating D．seated
Don’t you think the world would be an easier place to live in, if we all ________ the same language?
A．speak B．had spoken C．spoke D．would speak
