Children should _________waste water.
A. tell not to
B. be told don’
C. be told to don’
D. be told not to
查看答案
邮政通信的全部传递过程,通常由两个或两个以上的邮政通信企业协同作业才能完成。为了实现协同作业,必须制定统一的作业流程和操作规范,并且统一计划、统一指挥调度()
--Mike, you’ ve got so many beautiful stamps.--Yeah. I _________ collect stamps when I was in primary school.
A. was used to
B. used to
C. am used to
D. used
代放号业务是指代理各基础电信运营商的号码或帐号开户工作,常见的业务品种有移动、联通的手机号入网,电信固定电话及ADSL开户等()