—Is there anything else I can get for you except the book? — No. That be it. Thanks a lo

问题补充：

—Is there anything else I can get for you except the book?

— No. That be it. Thanks a lot.

A. could

B. must

C. should

D. might

答案：

A. could

B. must

(答案→)C. should

D. might

解析：考查情态动词。Should应当；应该。句意：——除了书还有其它我能为你拿的么？——没有了，应该就是它，谢谢！