1) Thomas Alva Edison (famous) as the( inventor) of the electric incandescent
A B
light( won) him the( familiar) title " The Wizard of Menlo Park".
C D
2) The (training) of wild animals( has been) (of )great (important) to circus
A B C D
performances.
3) It is (difficult)( in communication) that( causes) visitors to Africa (the most) trouble
A B C D
1)A. 改成 fame. fame 当动词时有这么用的吗? fame 是被动用法, 是"使动词"吧.
2) D.改成 importance. 我的理解是 of great importance = great important .那么, 去掉C. 岂不更好?
3)A. 改成 difficulty ,为什么? it 没指代. that 指代 difficulty 吗? 这句怎么看怎么别扭.