they find listening to the tape is ----(use) learn English

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/09 13:35:24

they find listening to the tape is ----(use) learn English
they find listening to the tape is ----(use) learn English

they find listening to the tape is ----(use) learn English
useful
他们发现听磁带学英语很有用.
PS:learn前是否丢了个to?

useful to