单项选择题
Very few scientists () completely new answers to the world's problems.
A.come up with B.come out C.come round D.come up to
单项选择题 The police are suspicious () his words because he already has a record.
单项选择题 The girl was () a shop assistant; she is now a manager in a large department.
单项选择题 He failed to supply the facts relevant () the case in question.