这个问题很像“为什么1加1等于2？”
让人觉得很容易回答（小学生甚至幼儿园小朋友都会回答），但也很难回答（需要用高等数学知识来回答）。
哈哈
The others in the group guess what the activites are去掉are就成了The others in the group guess what the activites，而guess之后的what the activites既不是一个句子，也不是一个规整的名词性短语，所以不合适。试看：
Can you guess how many red pockets I have received from my relatives for the Chinese New Year?
Can you guess who will be our guests for today's dinner?
让人觉得很容易回答（小学生甚至幼儿园小朋友都会回答），但也很难回答（需要用高等数学知识来回答）。
哈哈
The others in the group guess what the activites are去掉are就成了The others in the group guess what the activites，而guess之后的what the activites既不是一个句子，也不是一个规整的名词性短语，所以不合适。试看：
Can you guess how many red pockets I have received from my relatives for the Chinese New Year?
Can you guess who will be our guests for today's dinner?
