问题补充:
---Shall we go there by boat for a change?
---.
A. You say
B. It is up to you
C. It is hard to say
D. It is easy to tell
答案:
A. You say
(答案→)B. It is up to you
C. It is hard to say
D. It is easy to tell
解析:情景交际。You say 你说过;It is up to you由你决定; It is hard to say难说;It is easy to tell很好说。根据上文,我们乘船去哪儿换换环境吗?可知选B最符合语境。