The 30th Olympic Games, _______ between July 27 and August 12 in 2012, will take place in London.
Hiking is ____ great fun .You will get close to ____ nature and take exercise at the same time.
--- I’ll be away for a while. Would you mind looking after my baby? --- Not at all. .
Not until the man was out of work again going to attend a training class.
The little girl who got lost decided to stay _______ she was and wait for her mother.
I feel a bit nervous since this is the first time that I _______ to give a lecture to so large an audience till now.