问题补充：
---- Youd better some popcorn or soft drinks before the film begins.
---- But I think its better anything while watching the film.
A. buy; not have
B. to buy; not to have
C. to buy; not have
D. buy; not to have
答案：
A. buy; not have
B. to buy; not to have
C. to buy; not have
(答案→)D. buy; not to have
解析：句意：在电影开始前，你最好买一些爆米花或者是软饮料。但是我认为看电影时不吃任何东西比较好。Had better do sth意为“最好做某事”，it is better not to do sth意为“不做某事是比较好的”，故选D。
