People ___ (live) in different countries made different kinds of words. Today there are about fifteen hundred _
___ in the world. Each contains many thousands of words. A very large dictionary, for example, contains four _
___ five hundred thousand words. But we do not need _
__these. To read short stories you need to know only about two thousand words. _
_ you leave school, you will learn only one thousand or more.
The words you know are called your vocabulary. You should try to make your vocabulary _ (big). Read as many books as we can. There are a lot of books _
__ (write) in easy English. You will enjoy them. When you come across _
__ new word, look it _
___ in your dictionary. Your dictionary is your _
_ (much) useful book.