1 we often read in novels of a seemingly respectable person or family____some terrible secrest.a.having b.has c.whom has d.that they have2the only person i have ever known___ a skeleton in the cupboard.a.he had b.of having c.that he has d.to have 3_______that i was a medical student once upon a time?a.do you forget b.have you forgettenc.have you not remremberedd.why don't you remember分别选 a d b 请说明其他为什么不对?

1. we often read in novels of a seemingly respectable person or family____some terrible secrest.
a. having b.has c.whom has d.that they have
having some terrible secret= That has some terrible secret做后置定语修饰
a seemingly respectable person or family
2. the only person i have ever known___ a skeleton in the cupboard....
a.he had b.of having c.that he has d. to have
to have a skeleton in the cupboard...
做后置定语修饰the only person
the only / the last/ the very + n. + to do 是固定的用法
3. _______that i was a medical student once upon a time?
a. do you forget
b. have you forgetten
c. have you not remrembered
d. why don't you remember
本句的意思是：你忘了我曾经是学医的学生？
强调结果，需用现在完成事态，因此可排除a和d
c的正确表达应为Haven't you remembered,因此也被排除。
只有b无论从语法还是从意义上来说都是最佳选择。

1.having some terrible secrets是分词短语 作person or family 的定语的,相当于that has some terrible secrets.选项b 定语从句的缺主语,选项c whom 不能作has 的主语的,whom 是作宾语的关系代词,选项d,多了个they,...