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

[译文] 在我童年的时候，我们曾经一度生活很艰难。

　 A. at a time 　 B. at all times

　 C. at one time 　 D. at any time

[答案及简析] A。 at a time曾经一度； at all time总是； at one time 先前，以前；at any time任何时候。

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

[译文] --怎么这样不高兴呀？　　--她被班上同学嘲笑了。

　 A. laughed 　 B. laughed at

　 C. been laughed 　 D. been laughed at

[答案及简析] D。 动词laugh是不及物动词，表示嘲笑得在后面加上介词at。

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

[译文] --你真的喝醉了。　　--只是在家里。除了你谁也看不见我喝醉了。

　 A. is seeing 　 B. had seen

　 C. sees 　 D. saw

[答案及简析] C。 情景英语。该句说的现在的情况，故用现在时态。

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

[译文] 开初，我真的难决定，是买大的电脑还是买小的？

　 A. what to buy 　 B. to buy what

　 C. which to buy 　 D. to buy which

[答案及简析] C。 在两种中选择，用which。

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

[译文] --这节课够长的吧？　　--不，不太长。

　 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

[答案及简析] C。 enough 不能与too连用。

773] The government of the country is trying to _____ the prices for foods in order to please people.

[译文] 为了使人民满意，政府正在降低物价。

　 A. bring down 　 B. take down

　 C. put down 　 D. lay down

[答案及简析] A。 bring down降低物价；take down放下；put down镇压；lay down放下。

772] Is _____ possible to fly to the moon in a spaceship?

[译文] 乘飞船到月球有可能吗？

　 A. now 　 B. man

　 C. it 　 D. that

[答案及简析] C。 It is + adj. + to do sth.句型。

771] You can’t _____ until tomorrow morning after the blood examination.

[译文] 直到明天上午查血后，你才可以吃喝。

　 A. not only eat but also drink 　 B. either eat or drink

　 C. neither eat nor drink 　 D. both eat and drink

[答案及简析] B。 该句中有否定词not，就只有用either …or…结构。

770] We’re trying our best to get our English _____.

[译文] 我们打算尽力提高我们的英语。

　 A. improved 　 B. to improve

　 C. improves 　 D. improving

[答案及简析] A。 过去份词作宾补，表示被动和动作的完结。

769] All the preparations for the task ______, and we’re ready to start.

[译文] 这项工作的所有准备已经完成，我们准备马上开始。

　 A. completed 　 B. complete

　 C. had been complete 　 D. have been completed

[答案及简析] D。 时态题，从后一句话中我们可以判断期那一句应该是现在完成时态。