单选题 The more we learn about the ______ of the brain, the more difficult it seems to explain the differences between girls and boys.

单选题 The grass had ______ in the warm sun.

单选题 Police are conducting a(n) ______ search for the missing woman.

单选题 I hold the strong ______ that he will win at last.

单选题 Everybody waited outside the hotel, ______ to catch a glimpse (瞥见) of the movie star.

单选题 The prosecution (原告) in this case has no ______ evidence.

单选题 We have gathered a lot of ______ that he cheated (作弊) in the exam.

单选题 I don't want to take away from his ______, but he couldn't have done it without my help.

单选题 ______ general, about 10% of the candidates are eventually offered positions.