Being ______ highly skilled reader is ______ key to becoming successful in the Information Age.
It was not _______she took off her glasses ______I realized she was my former classmate .
The old man has expected to see all his children when he was in hospital, but ______ came to see him.
David apologized for _______to inform me of the change in the plan.
Jackson returned to Seattle for a while, ______ to Canada, and worked a few jobs there before heading for New York .
We were swimming in the lake _____ suddenly the storm started.