问题补充:
— How’s your tour around the North Lake? Is it beautiful?
— It be, but it is now heavily polluted.
A. will
B. would
C. should
D. must
答案:
A. will
B. would
(答案→)C. should
D. must
解析:句意:--你去the North Lake 的旅行怎么样,漂亮吗?---the North Lake应该是很美的一个湖泊,但现在被污染了,言外之意,这个湖泊之美要打上问号。Should这个情态动词有“按理推测”的含义,可译成“理应……”等含义,符合对话的真实意图。答语如果用It should have been, but…也是可以的。will表“现在的自然倾向”,would表“过去习惯、倾向”,must 表“肯定推测”,均不符句意。选C。