He is determined to become a specialist ________ computer when he grows up.

  A. for       B. in     C. on       D. about

The best means to go there _________walking.

  A. is      B. are       C. to be      D. be

I still remember      to the Famen Temple and what I saw there. 

A. to take     B. to be taken     C. taking      D. being taken

At times the balance in nature is ______，resulting in a number of possibly unforeseen effects.

A．troubled  B．confused    C．disturbed  D．puzzled

The government tried it’s best to ______ the people’s needs, but the people were still not _____.In fact, what the government did was not ________.

A. satisfy; satisfied; satisfying             B. satisfy; satisfying; satisfied

C satisfied; satisfied;  satisfying          D. satisfying; satisfied; satisfied

To the surprise of many people, in ten years the city's population _______ by 12%.

  A. gained      B. expanded   C. developed     D. spread

Only after I read the text over again _____ its main idea.

A. that I knew    B. did I know    C. I could know    D. I did know

The UN is trying to ______ the world ________ hunger.

A. get rid of; by         B. rid; of         C. be rid of ;by         D. get rid; of