Computers are useful. For example, they can ________ sending e-mail. A.used to B.be used to C.be use...
2022-09-16 12:54:44 183次 牛津上海版英语九年级第一学期 Unit 4 单元测试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
Computers are useful. For example, they can ________ sending e-mail.
A.used to B.be used to C.be used for D.be used
本题链接：
