There are a lot of computers in the lab,and they need professional __________ to make sure they can be in a good state.
19.We were that the Wenchuan earthquake left the whole city in ruins.
18.——would you like to go and see the film with me this evening?——I am sorry, I can’t because I ________my homework.
17.——Honey, please don’t play the computer games.——Pardon ?——I ______ play the computer games.
16.He’ll never forget the years _______ he studied with his cousin in Oxford University.
15.The book Been There, Done That written by a Chinese American graduate is _____a real story.