二、单项填空（共16小题；每小题0.5分，满分8分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并标在试卷的相应位置。
18. The telephone, ______ invention by Alexander Graham Bell in the 19th century, is of _______ great importance in our life now.
A. an; the B. the; a C. an; / D. /; the
19. The police went into the forest _________ the murderer.
A. in search of B. in honor of C. in memory of D. in favor of
20. Visitors were _________ at the _________ pictures that the guide showed.
A. amazed; amazing B. amazed; amazed
C. amazing; amazing D. amazing; amazed
21. In order to buy tickets, there have been many people waiting at the _________ to the railway station recently.
A. exit B. door C. entrance D. sign
22. The car factory produces many cars every year, many __________ are sold abroad.
A. of which B. which of C. of them D. of that
23. To be great, you must be smart, confident, and ________, honest.
