—Boys and girls, we will have a class trip to Taixing Park next week.—Great! It must be .

—Boys and girls, we will have a class trip to Taixing Park next week.
—Great! It must be . I simply can’t wait it.
A. a fun, for
B. funny,to
C. fun, to
D. fun, for

A. a fun, forB. funny,toC. fun, to(答案→)D. fun, for解析：根据语境可知此句的含义是同学们，我们下周将要到天行公园去旅游。答语是太棒了，那肯定有趣，我已经迫不及待了。此题考查的是情态动词表示推测，must be+名词或形容词表示肯定性的推测。固定短语wait for表示等候，其否定句是迫不及待做某事相当于can’t wait to do sth。综上所述故选D。

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