783] The question is not easy _____.

[譯文] 這個(gè)問(wèn)題不易回答。

　 A. to answer 　 B. to be answered

　 C. answered 　 D. answering

[答案及簡(jiǎn)析] A。 表示形容詞后接不定式，如果不定式與該句主語(yǔ)有動(dòng)賓關(guān)系，不定式用主動(dòng)形式。

782] The classroom ______ 30 feet long.

[譯文] 教室量起來(lái)有三十英尺長(zhǎng)。

　 A. measures 　 B. is measured

　 C. has 　 D. has length

[答案及簡(jiǎn)析] A。 measure, weigh, number, wash, sell, drink, pay, wear, keep, prove等詞都可以用主動(dòng)形式表示被動(dòng)意思。

781] As middle school students, we _____ the police to keep order.

[譯文] 作為中學(xué)生，我們過(guò)去常常幫助警察維持交通秩序。

　 A. are used to help 　 B. used to helping

　 C. used to help 　 D. used to be helped

[答案及簡(jiǎn)析] C。 used to do sth. 過(guò)去常常做…；be used to doing sth.習(xí)慣語(yǔ)做…。

780] The teacher said he needed _____ boys besides his students _____ the classroom.

[譯文] 老師說(shuō)他還需要20個(gè)男孩幫助他打掃教室。

　 A. 20 other; clean 　 B. 20 more; to clean

　 C. 20 more; cleaning 　 D. another 20; clean

[答案及簡(jiǎn)析] B。 another 20 students = 20 students more；　后面是不定式作目的狀語(yǔ)。

779] If you keep on, you’ll succeed _______.

[譯文] 如果你繼續(xù)的話，你遲早會(huì)成功的。

　 A. in time 　 B. at one time

　 C. at the same time 　 D. on time

[答案及簡(jiǎn)析] A。 in time及時(shí)，遲早；at one time先前，以前；at the same time同時(shí)；on time準(zhǔn)時(shí)。

778] We had a hard life _____ in my childhood.

[譯文] 在我童年的時(shí)候，我們?cè)��?jīng)一度生活很艱難。

　 A. at a time 　 B. at all times

　 C. at one time 　 D. at any time

[答案及簡(jiǎn)析] A。 at a time曾經(jīng)一度； at all time總是； at one time 先前，以前；at any time任何時(shí)候。

777] -----Why does Ling Ling look so unhappy? 　-----she has_____ by her classmates.

[譯文] --怎么這樣不高興呀？　　--她被班上同學(xué)嘲笑了。

　 A. laughed 　 B. laughed at

　 C. been laughed 　 D. been laughed at

[答案及簡(jiǎn)析] D。 動(dòng)詞laugh是不及物動(dòng)詞，表示嘲笑得在后面加上介詞at。

776] ----You’re drinking too much. ----- Only at home. No one ______ me but you.

[譯文] --你真的喝醉了�！　�--只是在家里。除了你誰(shuí)也看不見(jiàn)我喝醉了。

　 A. is seeing 　 B. had seen

　 C. sees 　 D. saw

[答案及簡(jiǎn)析] C。 情景英語(yǔ)。該句說(shuō)的現(xiàn)在的情況，故用現(xiàn)在時(shí)態(tài)。

775] I really can’t decide _____ first. A small computer or a big one?

[譯文] 開(kāi)初，我真的難決定，是買(mǎi)大的電腦還是買(mǎi)小的？

　 A. what to buy 　 B. to buy what

　 C. which to buy 　 D. to buy which

[答案及簡(jiǎn)析] C。 在兩種中選擇，用which。

774] -----Was the class long enough? -----No, _______ enough.

[譯文] --這節(jié)課夠長(zhǎng)的吧？　　--不，不太長(zhǎng)。

　 A. it wasn’t much too long 　 B. it wasn’t too much long

　 C. it wasn’t quite long 　 D. it wasn’t too long much

[答案及簡(jiǎn)析] C。 enough 不能與too連用。