Oh, it's you, I'm sorry I ____know you ____here.
The shopkeeper did not want to sell for ______ he thought was not enough.
Helen was much kinder to her youngest child than she was to the others, _____, of course, made the others unhappy.
The reason why he was late was _______ he had take a wrong bus.
The school ______ I visited last year was not the one _______ I once worked.
Not that John doesn’t want to help you, ______ it’s beyond his power.