【单选题】Nobody knew it ____ me. [ ]
【单选题】Sara kept the secret to ________ and nobody knew about it.
【单选题】Nobody knew who was the first ________ at school that morning when the window was broken.
【单选题】综合布线系统双绞线电缆中常用的 4 对电缆有四种本色,它们是( )。
【单选题】_____ seemed as if nobody knew anything about the matter.
【单选题】Nobody knew how he came up with this ______ idea about the trip.
【单选题】Nobody knew _______ there.
A.
how long time I had been
C.
how long time had I been