单选题 It was quite a long time ______ I figured out what had happened to the manager.

单选题 After suffering a heart attack, Michael Jackson was pronounced dead, ______ a tragic end to the world’s most popular entertainer.

单选题 To fully understand the writer, we must read not only ______ the lines but also ______ the lines to know what is implied in the article.

单选题 The survey shows that about seventeen percent of all crime in that city was ______ by people under 25.

单选题 Parents should pay attention to the cases ______ their children have difficulty adapting to new surroundings.

单选题 The ______ problem of bringing a spaceship back from the moon has been solved.

单选题 ______ I say Clancy is a smart boy, he still needs to work hard to achieve his goal.

单选题 Neither side would give in to ______. As a result, the peace talk broke down with no agreement reached.