It’s necessary to be prepared for a job interview .______________ the answers ready will be of great help.A To have had B having hadC Have D Having

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It’s necessary to be prepared for a job interview .______________ the answers ready will be of great help.A To have had B having hadC Have D Having
It’s necessary to be prepared for a job interview .______________ the answers ready will be of great help.
A To have had B having had
C Have D Having

It’s necessary to be prepared for a job interview .______________ the answers ready will be of great help.A To have had B having hadC Have D Having
D
为工作面试做好准备很必要.准备好怎么回答会有很大帮助.
动名词做主语表示泛指一般情况.
先排除C,原形肯定是不对的.
再排除A,句中这个动作还没有做,而动词不定式往往表示动作还没有做,更谈不上用其完成时.
B表示已经准备完成.也排除.

having
这句话动词是will, 所以必须用to have 或者having. 连着两个have意思重复,所以选D

选择A,第一个have是表示将来完成,后面的是have表示:使。。。。。

A