he often watch too much tv when he was a child保持句意不变
问题描述：
he often watch too much tv when he was a child保持句意不变
急
he_____ ______ watch too much tv when he was a child
答
used to
use to do sth 表示过去常常做某事.
he often watch too much tv when he was a child
此句意思为他小时候经常看电视.