Question

You can't imagine _____ when they received these ice christmas presents

请问空格里面填什么：A，how they were excited. B, how excited they were.
选A还是B那为什么是A或者为什么是B而不是A解释谢谢。HOW哪个句子的宾语从句引导词？

Answer 1

B，这就是一个从句，不用变顺序
how + adj.+sb./sth + be
eg. How happy I am!
你都无法想象他们收到这些圣诞节礼物时是多么激动！

Answer 2

B, how excited they were
how与它所修饰的内容一起提前

Answer 3

B
B是感叹句型