800 câu trắc nghiệm Điền từ Tiếng Anh có đáp án - Phần 20

Knowing (3)______ a person comes from will help to define how they look at their family obligations as well as how they celebrate important milestones in life.

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Knowing (3)______ a person comes from will help to define how they look at their family obligations as well as how they celebrate important milestones in life.

by which

how

when

where

Giải thích

D là đáp án đúng