My hometown is no longer the same 　　　 it used to be.

　 A．like 　　　　 B．that　　　　　 C．as　　　　 D．which

-May I open the window to let in some fresh air?

-_________!

A. Come on 　　　　 B. Take care 　　　 C. Go ahead 　　　　 D. Hold on

I shall have to get someone to help me to do the work; I can’t do it all ____ my own.

A. for 　 B. with　 C. by 　 D. on

—Hi，Mark.How was the musical evening?

—Excellent! Alex and Andy performed＿＿＿and they won the first prize.

A.skillfully　 　 　　　 B.commonly　 　　　 C.willingly 　　 　 D.nervously

_______ is no wonder that he could speak English well.

A. There　　 B. That　　　 C. This　　　 D. It

Many people like white color as it is a ________ of purity.

A.symbol　　　　　　 B.sign　　　　　 C.signal　　　　　　 D.example

Although the causes of cancer ___, we do not yet have any practical way to prevent it.

A. are being uncovered B. have been uncovering C. are uncovering D. have uncovered

Tyron was very angry, but cool-headed enough to ________ rushing into the boss’s office.

A. prevent　　 　 B. avoid　 　　 C. protect　　 D. allow

Few pleasures can equal__________of a cool drink on a hot day.?

A.some　　　 B.any　　　　　　 C.that　　　　　 D.those

How long is it ______ we last spent the holiday in the country together?

A. before　　　　 B. until　　　　 C. since　　　　 D. that