要道还道
参考答案：
参加调车作业的有关人员之间，为检查和确认调车进路是否正确所使用的一种规定联系方式，称为要道还道。
My parents often ask me _____ too much time _____ computer games. [ ]
A. not to spend; playing
B. not to spend; to play
C. to not spend; play
－I hear we’ll have a new English teacher this term.
－Really? Do you know ?
A．when will he come
B．where he comes from
C．what is he like
D．how old is he
