单选题 What does Margherita say about presenting a show?

A、 It is essential to keep in mind what is going to happen next.
B、 It is more complicated than she had previously thought.
C、 The ability to add and subtract is the most important requirement.
D、 The contend of a show is sometimes changed suddenly.

【正确答案】 B

【答案解析】[解析] 从第三段的内容可知，主持一次节目比Margherita原来所想的要复杂。因此B项为正确答案。