책 English File – 기초 - 3C과

used to talk or ask about the number of things or people that are involved or concerned

얼마나

used in questions to ask for information or for someone’s opinion

무엇

used when we want to ask at what time something happens

언제

in what place, situation, or position

어디로

used to ask or talk about one or more members of a group of things or people, when we are not sure about it or about them

...하는

used in questions to ask about the name or identity of one person or several people

누구

used for asking the purpose of or reason for something

왜