Question

9. Can you imagine        to go for a picnic on such a fine day? (fun)

你能想象在如此好的天气里去野炊是多么好玩吗？

Answer 1

9. what fun it is / was考查感叹句。fun是不可数名词，所以要用whatfun来感叹。原本的句子是it is / was fun to do，在此基础上变成感叹句为what fun it is / was to do。 还可变为what fun it is / was that…结构。