Question

【题目】There goes the bell and the children are walking out of the classroom ______.

A. day by day

B. one after another

C. step by step

D. each other

Answer 1

【答案】B

【解析】句意：铃响了，孩子们一个接一个地走出教室。oneafter another意为“陆续地；一个接一个地”，强调连续性，符合题意。day by day“一天天地，渐渐地”；step by step“逐步地，循序渐进地”；each other“互相”。