—What’s the __________of China?—More than 1.3 billion.
— ________ big river it is! — Yes. I am afraid I can’t swim ________ it.
Helen ________ movies, so you canask her to go to the cinema with you.
— Would you like ________ something for me? — Of course. I enjoy ________ verymuch.
Some people are taking photos, ________ are riding elephants.
Mona likes drawing pictures. She wants to be ________ artist.