If a book has seven or more new words on each page, a reader who wants to practice reading speed ______ .

A．use the passages in a reading course
B．improve reading speed
C．develop reading comprehension
D．make a good use of the library

A．workers now take examinations
B．the population has grown
C．there are only written examinations today
D．examinations are usually written and timed now

A．Books about tennis playing.
B．Books about ruining family.
C．Books about language testing.
D．Books about personal life history.