The study also notes a steady decline in the number of college students taking science courses.

A. continuous            

B. relative            

C. general              

D.sharp

We explored the possibility of expansion at the conference.

A. offered                 

B. included             

C. accepted            

D. investigated

The high speed trains can have a major impact on our lives.

A. effort                  

B. problem             

C. concern            

D. influence

The police believe the motive for the murder was jealousy.

A. choice                 

B. idea                 

C. decision            

D. reason

Marsha confessed that she knew nothing of computer.

A. admitted              

B. reported            

C. hoped               

D.answered