He is often________（穿）in a yellow coat when he takes part in an exam.

He is often dressed in a yellow coat when he takes part in an exam.

be dressed in 固定搭配
穿衣物鞋袜

He is often dressed in a yellow coat when he takes part in an exam.

当他参加考试的时候,总是穿着一件黄色的外套.

上楼说得对 固定搭配 be dressed in sth