The most important thing about cotton in history is______part that it played in______Industrial Revolution．

　 A．／；／　　 B.the；／　 C. the；the　 D.a;the　

The pilot asked all the passengers on board to remain ___ as the plane was making a landing.

A. seat 　 　　　　 B. seating  　　 C. seated  　 　 D. to be seating

Medicine shouldn’t be kept _______ it is accessible to children.

A. even if　　　　 B. which　　　　 C. where　　　　　　 D. so that

I _____ your last point — could you say it again?

A. didn’t quite catch                                  B. don’t quite catch

C. hadn’t quite catch                                 D. can’t quite catch

Why don’t you put the meat in the fridge? It will ____ fresh for several days.

　 A. be stayed　　 B. stay　　　　　 C. be staying　　 D. have stayed

He worked harder than before, and he passed the English examination ____.

A. at last　　　　 B. finally　　　 C. gradually　　　　 D. last

经过十天的培训，工人们逐渐掌握了生产流程中的技能。(get the hang of)

Nancy enjoyed herself so much　　　 she visited her friends in Sydney last year.

A.that　　　 B.which　　　　　　　　　　 C.when　　　　　 D.where

Li Dong d________ more than half of his liver to save my life.

Because of the ________ (到场) of the famous football star, everyone cheered up.