—So you didn’t say hello to him last night?
—Well, I stopped and smiled when I saw him, but he ________ me and walked on with his head very high.
A.ignored B.refused C.recognized D.missed
White noise consists of________ collections of sounds at different frequencies，such as the dull noise of aircraft engines.
A.swift B.fierce C.random D.generous
John was a hardworking man and he ________ a piece of waste ground into a beautiful garden.
A.translated B.transformed C.transported D.transferred
Nowadays students go to key universities just for a formal ________，which may help them hunt for a good job in the future.
A.conservation B.preparation C.graduation D.qualification
When the speaker finished his speech, he was content to see his speech was ________ with cheers and applause from the audience.
A.respected B.commented C.associated D.greeted
They planned to hold a grand party to ________ their parents’ diamond wedding anniversary as a reward for bringing them up.
A.congratulate B.memorize C.observe D.guarantee
