17.The employees___more enthusiastic about their work since their pay rose.
A、are
B、have been
C、were
D、will be
15.At such a time of crisis, we must try __ to all differences and stick together,
A、set aside
B、set back
C、set down
D、set forth
II.Vocabulary and Structure(15 points) Directions:There are 15 incomplete sentences in this section.For each sentence there are four choices marked A,B,C and D.Choose one answer that best completes the sentence and blacken the corresponding letter on the Answer Sheet. 6.I asked two passers-by how to get to the new railway station,but___of them knew it.