He had to sell his luxury car, ________ his company was in debt. 

You shouldn’t go out without a coat ,         it’s rather cold .

— How long do you think it will be _______ the USA recovers from the losses of the financial crisis?— Perhaps four or five years.

_________surprises us most is that she doesn’t even know _________the difference between the two lies.

Children’s brains cannot develop properly _________ they lack protein.