1. The play begins at 6: 40 pm. So we have to be at the theatre ____ 6:30 pm at the latest.
A. after B. around C. until D. by
1. D。从戏剧在下午6:40开始可知到达剧院的时间最迟不应晚于6:30。A项表示下午6:30后到剧院，C项表示在剧院呆到下午6:30为止，均不合题意。B项干扰性最强，around意为左右，大约, 但在6:30 pm后有at the latest最晚,二者相矛盾。C项by是not later than(不迟于)之意，整合题意。
2. They held a ceremony ________ those killed in the battle.
A. in honor of B. instead of C. in favor of D. by means of
2. A。in honour of意为为庆祝(为向. . . 表示敬意,为纪念；instead of意为代替; 而不是；in favor of意为赞成；支持；by means of意为通过; 用; 借助于。根据句意他们举行了纪念阵亡战士的仪式可知答案为A。
3. After finishing middle school, my sister did nothing ________ at home.
A. but to read B. but read C. besides reading D. except to read
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