There are five pairs, but I'm at a loss which _____ to buy.
Tony lent me the money, __________that I’ d do as much for him .
Did I really hear someone come in or was it only a(an) ?
The actress has decided to leave the at the age of 50.
It is terrible. I can’t settle down to today.
With a lot of difficult problems , the newly-elected president is having a hard time.