My parents don’t care _______ my pocket money goes, but one thing is for sure: the money spent must be worthwhile.
Both the Winter and Summer Olympics are held ___________on a regular basis.
What do the five rings on the Olympic flag ___________?
Visitors were _______ at the ________pictures that the guide showed.
I can never forget the day ________ we worked together and the day ________ we spent together.
Is this the reason _______ he was late for the meeting?