.
We won’t give up _____ we should fail ten times.
| A.even if | B.since | C.whether | D.until | 
—Glad to see you again! I quite appreciate your new haircut.
 —. Well, I like things that are in.
| A.Of course | B.Never mind | C.Thank you | D.Forget it | 
— Ken, ___________, but your TV is going too loud.
 — Oh, I’m sorry. I’ll turn it down right now.
| A.I’d like to talk with you | B.I’m really tired | 
| C.I need your help | D.I hate to say this | 
Owing to heavy traffic jams, many people would like to choose the train ______ driving.
| A.in preference to | B.in addition to | 
| C.in answer to | D.in relation to | 
— Thank you very much for giving me a hand when I was in trouble.
 — Don’t mention it. I only did what anyone else _______ in my place.
| A.must do | B.could have done | 
| C.would do | D.can have done | 
As to the long-term effects of global warming some believe that the damage has been done, ______________________.
| A.otherwise we take steps to make up now | 
| B.now that we take steps to make up | 
| C.whether we take steps to make up now or not | 
| D.unless we take steps to make up now |