我们用“羞花”来形容历史上哪位美女？
A.西施
B.杨贵妃
C.貂禅
D.王昭君
参考答案：B
某商场对一件商品连续2次降价后，价格为原来的81%，求商品每次平均降价百分率．
He wasn’t looking forward to the time ______ he had to give evidence to the court.
A．which
B．when
C．that
D．whenever
