They have already read an write填问号(can,could,be able to)适当形式

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/16 04:58:59

They have already read an write
填问号(can,could,be able to)适当形式

been able to

they have already 用完成时 应该是 been able to read and write 吧