Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 16 to 20.

Is it worth reading books, (16) ________ nowadays there are so many other forms of entertainment? Some people say that even paperback books are expensive, and not everyone can borrow books from a library. They might add that television is more exciting and that viewers can relax as they watch their favourite (17) ________. All that may be true, but books are still very popular. They encourage the reader to use his or her imagination for a start. You can read a chapter of a book, or just a few pages, and then stop, of course, it may be so (18) ________ that you can't stop! There are many different kinds of books, so you can choose a crime novel or an autobiography, or a book (19) ________ gives you interesting information. If you find it hard to choose, you can read reviews, or ask friends for ideas. Personally, I can't do without books, but I can (20) ________ up television easily enough. You can't watch television at bus stops!