I will help my mother thepet dog while she is abroad.

Einstein’s Theory of Relativity is so________that most of us can not understand it. [ ]

Could you pass me _____glass on the table, please—Sure, but it’s _____empty one.

Are you clear about the trip next Saturday- One more thing.1 want to know_____

th Olympic Games, _______ betweenJuly 27 and August 12 in 2012, will take place in London