问题补充：
The beautiful scenery in Switzerland is very to the tourists from the whole world.
A. grateful
B. attractive
C. valuable
D. popular
答案：
A. grateful
(答案→)B. attractive
C. valuable
D. popular
解析：形容词词义辨析。A．grateful 感激 B．attractive吸引人的 C．valuable有价值的 D．popular受欢迎的“瑞士优美的风景吸引着来自世界的游客”。选B
