It was after he had read the requirements _______ Mr. Black realized the task was too difficult to be finished.
The little girl cried _____ she saw the dog.
On Christmas Day people walk about in the street _____ their best.
When a person wants to operate the computer, _____ read instructions first.
_____ many other scientists, Albert Einstein enjoyed music besides scientificresearch work.
He did as much as he _____ her.