Know (someone/something) like a …..

Can you complete this English expression? It means “to know someone/something very well.

Know (someone/something) like a ……

a) hand

b) star

c) head

d) book

The answer is below!↓

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Answer: d) book

Know (someone/something) like a book!

Example: I know my friend like a book.

By I Talk You Talk Press – Easy English Reading