I don’t know whether you happen ____ that he has been away for two months.
I’d prefer ______ in the office rather than _____ at home watching TV.
I have never dreamed of ______such a beautiful place in the world.
The hunter insisted that he _____ a tiger and that a searching team ______ to hunt for it.
_____ of the students who took part in the military training is 450.
This is the first time that I ___________ at the meeting.