The young man who was riding a bike was so careless that he had an accident.变同义句The young man__the bike wasn't__enough t
问题描述：
The young man who was riding a bike was so careless that he had an accident.变同义句The young man__the bike wasn't__enough to avoid the accident
答
The young man（riding）the bike wasn't（careful）enough to avoid the accident第一个空不能填rode吗？不能。man是ride的主语，所以只能用现在分词。如果第一个空可以填两个词，你可以填who rode。