She spoke as though she (know ) all.
A
had know
B
had known
C
know
D
knows
Correct Answer: had known
As though /As if যুক্ত Sentence এর ১ম অংশ past indefinit tense হলে, পরের অংশ Past perfect tense হয়। সুতরাং সঠিক উত্তর অপশন (খ) ।