Jane is good at singing ,and she ---------to sing in her room very often 应该填什么 原因：

题目

Jane is good at singing ,and she ---------to sing in her room very often 应该填什么 原因：
is heard B.hears C.was heard D.heard

答案

填 “used "
used to do sth.是“曾经做某事”的意思
Jane擅长唱歌,她曾经经常在她房间唱歌.