Time waits for no man． But some people won't realize the importance of time______it's gone．（　　）

A．asB．sinceC．whenD．until

Two tickets for Sunday， please!

Sorry． There is ____left．（　　）

A．nothingB．noneC．someD．anything

Your father has passed the driving test？

Yes． _____my father_____my mother has．（　　）

A．Not only； but alsoB．Neither； nor

C．Either； orD．Both； and

Hurry up， Jeff! Let's cross the road as fast as possible．

No， you ____． Don't you see the light is still red？（　　）

A．couldn'tB．wouldn'tC．mustn'tD．needn't

Lights are out． The concert is to begin． The fans hold their breath for Jay Chou's_____．（　　）

A．influenceB．guidanceC．experienceD．appearance