【答案】—I’m tired because I studied until midnight last night.

—I’m tired because I studied until midnight last night.

—Why not go to sleep ________ this evening?

A. late B. later C. early D. earlier

【答案】

D

【解析】

句意：——我累了，因为我昨晚学习到深夜。——今晚为什么不早点睡觉呢？考查比较级辨析题。根据句意语境，可知是this evening和last night进行比较；go to sleep上床睡觉，动词短语需用副词修饰；应该用副词比较级，可排除AC选项。而later不合句意，故选D。