.This washing machine is environmentally friendly because it uses _____ water and electricity than _____ models .
| A．less ; older | B．less ; elder | C．fewer ; older | D．fewer ; elder |
―What’s the matter? You look worried and restless.
―Oh, nothing really serious. As a matter of fact, I ______ of my graduation thesis. I have to hand it in soon.
| A．am just thinking | B．just thought |
| C．have just thought | D．was just thinking |
One of them told me, “This is the first time I ________ to the capital to attend the flag-raising ceremony.”
| A．came | B．come | C．have come | D．had come |
The news came as no surprise to me. I _______ for some time that the factory was going to shut down.
| A．had known | B．knew | C．have known | D．know |
My mind wasn’t on what he was saying so I’m afraid I _______ half of it.
| A．was missing | B．had missed | C．will miss | D．missed |
With more forests being destroyed, huge quantities of good earth _______ each year.
| A．is washing away | B．is being washed away |
| C．are washing away | D．are being washed away |