Question

【题目】It's too early. I don't think the ticket office is open ________ nine.

A.beforeB.atC.untilD.since

Answer 1

【答案】C

【解析】

句意：太早了。我想售票处九点才开门。

考查连词。before在……以前；at在(某处)；until到……时；since自……以来。根据It's too early. 太早了。可知，后文是售票处到九点才开门。考查：not…until直到……才……。故选C。