本文节选自《赖世雄经典英语语法同步练习册》第十三章 介词的用法。
从下面所给的四个选项中，选择可以填入空白处的最佳选项。
( ) 1. December 30th is the day ______ which you must repay your loan.
A. by
B. for
C. with
D. at
( ) 2. Hurry up! Your train is leaving ______ ten minutes.
A. by
B. in
C. for
D. until
( ) 3. After going ______ a strict diet, Mary was transformed into a true beauty.
A. in
B. on
C. for
D. with
( ) 4. Scott was beaming ______ joy when his son was born.
A. by
B. of
C. in
D. with
( ) 5. Don't believe him. He always has many excuses _______ being late.
A. for
B. of
C. in
D. under
【答案详解】
1. A【解析】 “by 时间”表示“最迟不超过某时间”，故正确答案为 A。
2. B【解析】 “ in 一段时间”表示“在一段时间之后”，相当于“一段时间 later”，故正确答案为 B。
3. B【解析】on a diet 表示“在节食”。
4. D 【解析】with 表示“有…… ；随着……”，故正确答案为 D。
5. A【解析】 excuse 后常用 for doing sth 表示“做某事的借口”，for 在这里表示“为了……的原因”，故正确答案为 A。
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