Điền từ thích hợp vào chỗ trống

Learning a language is, in some way, like... how to fly or play the piano. There... important differences, but there is a very important similarity. It is this: learning how to do such things needs lots... practice. It is never simply to "know" something. You must be able to"do" things with what ... know. For example, it is not enough simply to read a book on... to fly an aeroplane.  A... can give you lots of information about how to , but if only read a book and then try to... without a great deal of practice first, you will crash and kill ... The same is true of... the piano without having lots of ... first?
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