There are some _______ on the farm.[ ]

A. sheep                

B. sheeps              

C. sheepes            

D. a sheep

Two pages of the original manuscript (底稿) of Albert Einstein's General Theory of Relativity were________  on display in the Israel Pavilion of the 2010 World Expo in Shanghai.

A．put up           B set down            C. sent up                           D. taken up