【考点】考察介词辨析

【答案】A

【解析】介词by到...时为止；通过；for为了，因为；with和...；in在...里面；句义：你必须在9月30日这一天之前付账单的。根据句义可知本句中的by表示到...时为止。故A正确。

9. Our club is open to everyone ____ age, sex or educational background.

A. due to B. except for C. along with D. regardless of

【考点】考察介词短语意义辨析

【答案】D

【解析】本题考察的是介词短语辨析。Due to由于，因为；except for除...之外（强调整体与局部的关系）；along with和...一起；regardless of不管...不顾...（侧重于不考虑，不关注...）；句义：不管年龄，性别或教育程度，我们俱乐部向所有人开放。根据句义可知D项符合上下文语境。

10. Check carrots, potatoes, onions and any other vegetables ______ and immediately use or throw away any which show signs of rotting.

A. in demand B. in store C. on loan D. on sale

【考点】考察介词短语辨析及上下文串联

【答案】B

【解析】本题主要考察的是介词短语辨析。A需要；B储存，将要发生；C借用，借贷；D廉价出售；句意：检查一下我们存储的胡萝卜，土豆，洋葱和其他的蔬菜，立刻把那些有腐烂迹象的用掉或者扔掉。根据句意可知是检查存储好的蔬菜。故B正确。

11. When she first arrived in China, she wondered what the future might have for her, but now all her worries are gone.

A.in need B.in time C.in preparation D.in store

〖答案〗D

〖考点〗本题考查介词短语的辨析。

〖解析〗in need需要；in time及时；in preparation准备；in store贮藏着；储备着, 由句意可知D项正确。

12. You will never gain success you are fully devoted to your work.

A. when B. because C. after D. unless