I can't find the recorder in the room. It________by somebody.
| A．may have been taken away |
| B．may leave |
| C．may take away |
| D．must have taken away |
We spent hours driving and another few hours waiting, only _________ that the plane would be delayed until midnight.
| A．to be told | B．having told | C．to have been told | D．told |
In the experiment we kept _____ watchful eye on ______ developments and recorded every detail.
| A．a; / | B．/; the | C．a; the | D．/;/ |
I remember the time _____ Eric won that speech competition.
A where B why C when D which
You like travelling, _____ you?
A don’t B won’t C didn’t D haven’t
Jack, _____ friend, went back to America last Monday.
A me B I C my D mine