—Did your uncle phone you again the next day? ---No, it was a fortnight ___ he gave me a second call.
As more and more cars are produced and used, so the _____ from their exhaust-pipes contains an even larger volume of poisonous gas.
He left in such a hurry that I _____ had time to thank him.
There are usually at least two _____ of looking at every question.
It is not profitable to provide bus services in districts where the population is widely _____.
He _____ the place where he had been bitten by an insect.