— Catherine, I have cleaned the room for you.
— Thanks. You ______ it. I could manage it myself.
| A．needn’t do | B．needn’t have done |
| C．mustn’t do | D．shouldn’t have done |
.
More natural resources should be made use of __________ the increasing need of energy.
| A．meeting | B．meet | C．to meet | D．having met |
.
--- Is your headache getting __________ ?
--- No, it’s worse.
| A．better | B．bad | C．less | D．well |
.
The coffee is wonderful ! It doesn’t taste like anything I _________ before.
| A．was having | B．have | C．had ever had | D．have ever had |
.
As I am not feeling well, I really appreciate __________ to take my place.
| A．him offer | B．for him to offer | C．his offering | D．him to offer |
.
John, look at the time. __________ you play the piano at such a late hour ?
| A．Must | B．Can | C．May | D．Need |