It is said that in Australia there is more land than the government knows _______.
The first question was quite difficult but the rest _______ easy, _______ surprised us all.
The rescue team __________ 15 countries has come to aid..
Studies show that people are more __________ to suffer from back problems if they always sit before computer screens for long hours.
At last the soldiers reached ______the locals called the Golden Triangle.
--- What is that wonderful smell? --- Our neighbor ________ for a party.