_______ with the size of the whole earth , the highest mountain does not see...

李老师

_______ with the size of the whole earth , the highest mountain does not seem high at all.
A.  When compared                         B.  Compare
C.  While comparing                         D.  Comparing

2.  Corn originated in the New World and thus was not known in Europe until Columbus found it ________ in Cuba.
A.  being cultivated                         B.  having cultivated
C.  been cultivated                         D.  cultivating

3.  Who would you rather _______ with you, George or me﹖
A.  going                                        B.  to go
C.  have gone                                        D.  went

4.  Water is _______ to the growth of crops.
A.  absolute                                         B.  special
C.  moderate                                 D.  essential