how many cakes can i have,mum?

题目

how many cakes can i have,mum?
none,dear.they（ ）for your father.
A.prepare B.prepared C.have prepared D.were prepared
我不懂为什么不选c,
have you（ ）your ticket,sir?
no,I’m still（ ）it
A.found,finding B.looked for,looked for C.found,looked for D.looked for,finding
- -打错了，就解释下第一空为什么用found，第二空为什么用looking for

答案

D be+动词的过去分词表被动,蛋糕当然是为父亲被准备的
A 如果改正的话就选A了,因为find是强调结果“找到没有”当然是结果了；look for 强调过程的,因此“我正在找”用look for的进行时表示.