At minus 130℃, a living cell can be ______ for a thousand years.

A. spared        B. protected           C. preserved          D. developed

Surely it doesn’t matter where the student associations get their money from; what      is what they do with it. 

A. counts              B. applies                C. stresses                       D. functions

—Could you tell me the way to ____ Johnsons, please?

—Sorry, we don’t have ____ Johnson here in the village.

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

My morning ______ includes jogging in the park and reading newspapers over breakfast.

A. drill            B. routine    C.  regulation        D. action

AIDS control and prevention is a    to China as well as the whole world.

A. surprise             B. reaction           C. challenge          D. threat

It is not socially ____________ for parents to leave children unattended at that age. 

A. accessible                      B. acceptable

C. adaptable                      D. adorable

Although the country has had political independence for over a century,    it needs the support of its neighbors. 

A. naturally         B. economically        C. especially        D. luckily

Leaves are found on all kinds of trees, but they differ greatly ________ size and shape.

A. on             B. from          C. by             D. in

Eric received training in computer for one year, _____ he found a job in a big company. 

A. after that          B. after which           C. after it          D. after this

Many of them turned a deaf ear to his advice, _______ they knew it to be valuable.

A. as if              B. now that               C. even though          D. so that