It even leaves the scientists in _______what they should call the newly born creature, which looks half-human and half-animal.
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.
By the time you arrive home, I ____ ,so please don’t make any noise when you come in. A.have been sleeping B.would have slept C.had sleptD shall be sleeping