(    )22. A. bored         B. interested     C. worried     D. tired

(    )21. A. Everybody    B. Somebody    C. Nobody    D. Anybody

19. If you want to improve your English, study it_________ reading aloud and listening_________ tapes.

18. Could you please bring me an_________  and some_________  ? I need to send a letter.

17. Mike and Jack are twins, but Mike is _________  and more _________  than Jack.

16. The baby must be hungry and thirsty. Please give him some_________ to eat and some _________  to drink.

15. I'll have a meeting in Shanghai tomorrow. Would you mind _________ the time for all the flights to Shanghai for me?

       A. looking for    B. looking after   C. finding out     D. finding

    请根据所给句子的意思，从下面的方框内选出适当的词，并将其字母标号填在相应的横线上。

14. You'll fail your next exam _________ you start to work hard at your studies now.

       A. because       B. unless          C. so              D. why