If everyone makes a contribution () the environment, the world will become much more beautiful.

A．protect

B．to protect

C．protecting

D．to protecting

为了建立上海市良好的形象，（）被邀请参与了上海卢浦大桥开通仪式。

A.王治郅

B.易建联

C.姚明

D.巴特尔