问题补充:
---The World Expo (世博会) which will last 184 days will be held in Shanghai on May 1st.
--- exciting news! We shall try our best to support it.
A. How
B. What
C. How an
D. What an
答案:
A. How
(答案→)B. What
C. How an
D. What an
解析:句意:---将持续184天的世博会将在5月1日上海举行,---多么令人兴奋的消息呀!我们将尽我们最大努力去支持他。how+形容词+主语+谓语 或 how+副词+主语+谓语 how主要修饰形容词或副词。 根据题意故选B。