【题目】Singing and dancing, the children were the park when it began to rain.
A. turning to B. aiming at
C. heading for D. putting off
在线课程【答案】C
【解析】考查动词词组。A. turning to 转向，求助于； B. aiming at 目标是；C. heading for 朝着---； D. putting off推迟。句意：唱着、跳着，孩子们正朝着公园走的时候天开始下雨。根据句意可知选C。