3. The director _____ traffic safety in his talk.
A. drew in

B. settled down

C. felt like

D. dwelt on

答案: D

draw in (天)渐黑,(白昼)渐短;(汽车或火车)到站

settle down 定居,过安定的生活;平静下来;定下心来

feel like 想要

dwell on/upon 老是想着,详述