31. The cheering went on for quite some time _____ it died down and people took their seats again.
| A．Before | B．Since | C．As | D．When |
Take a taxi , _____ you'll miss your train .
| A．and | B．if | C．otherwise | D．or |
.The Chinese language differs from many Western languages___________it uses characters which have meanings and can stand alone as words.
| A．unless | B．until | C．now that | D．in that |
It is five years ____ he lived here.In other words, he left here five years ago.
| A．before | B．since | C．that | D．when |
31．America was_________was first called “India” by Columbus.
| A．what | B．where | C．which | D．That |
________ he is the last man I wanted to see, I did my best to help him.
| A．As | B．Now that |
| C．Although | D．However |
I can still remember ______ it was so long ago.
| A．or | B．as if | C．but | D．even if |
John plays basketball well, _____ his favorite sport is badminton.
| A．so | B．or | C．for | D．yet |
______ the ancient Egyptians built the pyramids puzzled people for centuries.
| A．Whether | B．What | C．How | D．Where |
“Drive-ins” have large parking lots ______ customers are served in their cars by waitresses.
| A．who | B．when | C．which | D．where |
You may use the book as you like, _______ you keep it clean.
| A．unless | B．so long | C．as long | D．so long as |
I wouldn’t eat potatoes unless I’m really starving, in _______ case you eat almost anything.
| A．whose | B．one | C．what | D．which |
We must prepare ourselves for the worst we are at a loss when meeting with difficulties .
| A．after | B．before | C．as | D．since |
Advertising is different from other forms of communication _________the advertiser pays for the message to be delivered．
| A．in which | B．in order that | C．in that | D．in the way |
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