I find difficult for Tom to reach that picture.He is a little short.A. thatB. itC. itsD. i

问题补充：

I find difficult for Tom to reach that picture.He is a little short.

A. that

B. it

C. its

D. is

答案：

A. that

(答案→)B. it

C. its

D. is

解析：句意：我发现对汤姆来说够到那副画是困难的。他有点矮。it放在find之后作为形式宾语，后面的不定式成分作为真正的宾语，故选B