—Is David a man with good manners ?—I don’t think so . As a matter of fact , he is but polite .
_____ he said is really interesting.
Mary often helps her best friend, ______ math is very poor.
Beijing is _____ capital of _____ China.
To be able to catch up with the other students, he needs ___ hard work; he needs your encouragement, too.
___ you have finished your homework, you can go and play with your friends.