Question

【題目】I'm going to buy a new CD_________Saturday.

A. in B. on C. at D. up

Answer 1

【答案】B

【解析】在具體某一天前用介詞on，如on Monday, on September 1th；在時(shí)間點(diǎn)前用介詞at，如at 6:00；in后常接月份、年份、季節(jié)等，如in May / 2015 / Fall，in the morning / afternoon / evening為固定表達(dá)。