"How do you know?" vs "How do you realize?"

[hasangoktepe]

English Language Tests, Intermediate level

ESL/EFL Test #86 "Simple Present (3)", question 9

The conversation went as follows: "I hear you live in this village, too" -- "How do you .........?" asked Andrew.

(a) discover
(b) find
(c) know
(d) realise

English Language Tests, Intermediate level

ESL/EFL Test #86 "Simple Present (3)", answer 9

The conversation went as follows: "I hear you live in this village, too" -- "How do you know?" asked Andrew.

Correct answer: (c) know
_________________________

What I can state about this question is that "I was a little bit confused".The responce must be"c"; however "d" is possible.

hasangoktepe

[Giang93]

you can see the different meanings between them .
"know " is used to indicate that you have information about something .
"realise " is used to indicate that you suddenly understand essence , law , attribute etc of something . You "realise" something by yourself mainly .

so , in this situation , c is the answer .