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1688] After Mary gave a report about the school, she _____ the guests around it.

[譯文] 做了關于學校情況的報告后，她又帶著客人參觀學校。

　 A. went on showing 　 B. went on with showing

　 C. went on to show 　 D. keep on showing

[答案及簡析] C。 go on to do sth. 接著干另一件事；go on doing sth.接著原來的事干。

1687] I can hardly hear the radio. Would you please _____?

[譯文] 我聽不見收音機的聲音。請開大一點！

　 A. turn it on 　 B. turn it down

　 C. turn it up 　 D. turn it off

[答案及簡析] C。 由于聽不見，要求人家把收音機的聲音開大一點。

1686] You will be late _____ you leave immediately.

[譯文] 如果你不馬上出發，你會遲到的。

　 A. until 　 B. unless

　 C. if 　 D. or

[答案及簡析] B。 unless = if not 如果不；除非。

1685] Was it in the cinema _____ Mr Smith met you _____ you saw the film?

[譯文] 你看電影的時候是不是史密斯先生在電影院碰到你的？

　 A. that; when 　 B. whom; then

　 C. there; what 　 D. which; where

[答案及簡析] A。 強調句中帶一個表示時間的定語從句。

1684] When she left college, she had her hair cut short and _____ it short ever since.

[譯文] 大學畢業時，她把頭發剪短了，從那時起她就一直留著短發。

　 A. wore 　 B. has worn

　 C. had worn 　 D. was wearing

[答案及簡析] B。 ever since引起的短語與完成時態連用。

1683] -----We don’t have enough books. What would you like to _____?　-----How about two of us ____one?

[譯文] --我們沒有足夠的書籍。你有什么建議？　　--兩人用一本如何？

　 A. suggest; sharing 　 B. say; share

　 C. suggest; share 　 D. say; sharing

[答案及簡析] A。 how about 后面接動名詞，這兒是動名詞的復合結構。

1682] -----The light is on. Could you have forgotten to turn it off?　　----- Yes, I _____.

[譯文] --燈是亮著的。你可能忘記關燈了。　　--是呀，我可能忘了。

　 A. could 　 B. ought have

　 C. must 　 D. might have

[答案及簡析] D。 情態動詞加完成時態，才表示對過去的推測。

1681] -----Thank you for the great trouble you’ve had _____ me with my computer work.　-----That is nothing.

[譯文] --十分感謝你幫做電腦工作。　　--沒啥。

　 A. with helping 　 B. helping

　 C. to help 　 D. to have helped

[答案及簡析] B。 have trouble doing sth. 麻煩，費勁做…。

1680] Professor Smith, many students want to see you. _____ they wait here or outside?

[譯文] 史密斯教授，許多學生想見你，是讓他們在這兒等呢，還是在外面等？

　 A. Do 　 B. Will

　 C. Shall 　 D. Would

[答案及簡析] C。 shall用于一，三人稱的疑問句中，表示征求意見或者提出建議。

1679] _____ books you may read, they should be of real value.

[譯文] 無論你讀什么書，它們都是有益處的。

　 A. Which 　 B. What

　 C. Whichever 　 D. Whatever

[答案及簡析] D。 whichever指在一定范圍內選擇。