单选题 Li Ming fell ______ others in English study, but he tried his best to catch up ______ them.

【正确答案】 C
【答案解析】[解析] 本句意为“李明在英语学习方面落后别的同学,但他正努力地赶上别的同学”。fall behind的意思是“落后”;catch up with sb.的意思是“赶上、超过别人”。