“上穷碧落下黄泉，两处茫茫皆不见”出自下面哪一部作品（）。
A.《牡丹亭》
B.《长恨歌》
C.《琵琶行》
D.《长生殿》

I always______my childhood as the happiest time of my life.A．look out forB．look back onC．look forward toD．look around for 点击查看答案

You______have said that, now Grandma s really angry.A．shouldn'tB．couldn'tC．wouldn'tD．needn't 点击查看答案