He listens carefully buts hears nothing.(改为同义句) He _____ carefully but _____ _____ _____.

问题描述:

He listens carefully buts hears nothing.(改为同义句) He _____ carefully but _____ _____ _____.
句型转换,

He listens carefully buts hears nothing.(改为同义句)
He (listens) carefully but (didn't hear anything).
他仔细听,但什么也没听见.