Cách sử dụng
The word 'whether' is used when we are not sure about something and we want to present two or more options. For example, "I don't know whether it will rain tomorrow or not." Here, 'whether' is used to present two options - it will rain or it will not rain. It can also be used to introduce a question, for example, "I'm not sure whether you like chocolate or not, can you tell me?" In this case, 'whether' is used to ask a question about the person's preference for chocolate. It is a useful word when we want to express doubt or present options.