David, can you tell me where I will _______ a good second-hand bike at a low price—You should turn to George, for he is a well-informed man.

The golden medal will be presented ________the first one.

Jenny was _________ to hear the news that their team didn’t win the game.

On October 16, Lu Yitao was appointed director of 2016 Spring Festival Gala, which was not the first time he ________ in charge of the CCTV gala.

You _______ an A on your term paper, but you quoted a little bit more from others’ papers.