Question

【题目】— Jack didn't go to bed _____ 12 o'clock last night.— That's why he was late for school this morning.
A.until
B.for
C.to
D.at

Answer 1

【答案】A
【解析】句意：—昨天晚上杰克直到十二点才上床睡觉。—那是他今天早上为什么迟到的原因。not ...until ...直到......才......,所以答案是A。