20．In recent years, this singer isn’t as popular as he used to be, and his latest album ______ only　 five thousand copies.

　 　　 A．is sold　　　　 　 B．is selling　　　 　 C．sold　　　 　　　　 D．was sold

19．She opened her eyes with a start and was about to cry out ______ she heard her father　 urgently telling her to keep quiet.

　 　　 A．while　 　　　　　　 B．when　　　　 　　 C．before　　　 　　 D．after

18．-Isn’t it hard to drive downtown to work all the time?

　 -Yes, and that’s why I ______ to work by train.

　 　　 A．have gone　　　　　　　　　 　　　　　 B．have been going

　 　　 C．was going　　　　　　　　　 　　　　　 D．will have gone

17．-Have you got used to the Chinese food, Robert?

　 -Yes. But I don’t like _____ when a Chinese host keeps serving me the food I don’t like.

　 　　 A．this　　　 　　　　 B．that　　　　 　　　 C．those　　　　 　　 D．it

16．Hard-working though he was, ______ there was never enough money for him to pay the bills.

　 　 A．/　　　　　 　　　 B．and　　　　 　　　 C．but　　　　 　　　 D．it

15．A few years ago, My Heart Will Go On was a popular song among young people, _______ were often heard singing it at parties.

　 　　 A．who　 　　　　　　　 B．which　　　 　　　 C．they　　　　 　　　 D．that

14．____ with the size of the whole earth, the biggest ocean does not seem big at all.

　 　 A．To compare　　　　　　　　 　　　　　 B．When comparing

　 　 C．While comparing　　　　　　 　　　　　　 D．When compared

13．Obama was elected ____ president last year, who is ______ first black president of _____ U.S.

　 　　 A．/, a, the　　 　　　 B．/, the, the　　 　　 C．the, a, /　　 　　　　 D．the, the, /