Question

【题目】— When the phone rang, he rushed out of the classroom immediately.
—Because something important happened to him.
A.at once
B.on time
C.at first

Answer 1

【答案】A
【解析】句意：——当电话响时，他立刻跑出了教室。——因为有一些重要的事情发生了。immediately=at once=right away意为“立刻”，B.准时； C.一开始，故选A。