It was not until I began to work that ______ how much time I had wasted.A did I realize B didn’t I realize C I realize D I realized
— Li Fan won the first prize in the national physics competition. — I ________ he was the winner.
He is a man who lacks experience and determination, and I think he is not ________ the job.
It was in the yard of his old house _____ he grew up ____ he dug out a pot of gold.
During the Spring Festival, the police are ______ the public safety.
He is a man of great help, with ________ help you can solve the problem easily.