______ on the top of the hill is an ancient temple dating back to the 17th century.
---- Has Sam finished his homework today? ---- I have no idea. He ________ it this morning.
In ________ most countries, a university degree can give you _________ flying start in life.
It is the first time that Martin has been to the South Pole, ________?
If it _____ for the heavy rain then, we would have arrived here ahead of time.
We should protect the environment, for plenty of fresh air ________ to good health.