________   makes the book so extraordinary is the creative imagination of the writer.

A. That   B. What

C. Who  D. Which

    He wrote a letter ________ he explained what had happened in the accident.

A. what     B. which  

C. where    D. how

 A chemist who speaks and writes English is in closer touch with the scientists in other countries than ________ who doesn't.

A. one  B．those

C．/  D．that

 What a terrible experience! ________， you're safe now—that's the main thing.

A. Anyway  B. Besides 

C. Otherwise   D. Therefore

       ________everyone here, I wish you a pleasant journey back to your country.

A．By means of

B．On behalf of

C．In search of

D．For fear of

________ we gave him something to eat, he would save it up for his little sister.

A. Whatever  B．However

C．Whenever  D．Whichever

       Jim   ________  a late night film at home when，right in the middle of a thrilling scene, the television went blank.

A．watched

B．had watched

C．was watching

D．would be watching

 Traditionally, college students hold a graduation ceremony to encourage themselves before they    ________     on their life journey.

 A．give up  B．settle down

C．get through  D．set off

—The town is so beautiful! I just love it.

—Me too. The character of the town is well  ________．

A．qualified     B．preserved

C．decorated    D．simplified

 —We________ the game. You spoiled the chance by missing the ball!

—I'm terribly sorry!

A．could win       B．would win

C．could have won  D．must have won