【正确答案】
D
【答案解析】[解析] 画线词follow为动词,意为“听懂”。D项understand意为“理解”,与画线词意思相近;例:I don't understand what you're talking about.我不明白你在说什么。A项change意为“改变”;例:Her expression changed when she heard the news.当她听到这一消息时,表情都变了。B项investigate意为“调查”;例:The company hired a detective to investigate the accident.公司雇用了一名侦探来调查这次事故。C项write意为“写”;例:I've been writing for three hours.我已经写了三个小时了。