The boy is very careless. He often (l ) his homework at home

首字母填空

The boy is very careless. He often (leaves) his homework at home
leave sth, at home 固定短语，把东西落在家里
一般现在时的单三形式，所以是leaves

你好！ 为你解答。 The boy is very careless. He often (leaves，落下东西) his homework at home. 这个男孩很粗心。他经常把作业忘在了家里。 如果对你有帮助，望采纳。