---you can't imagine ___ fantastic fun web chatting is.---really?but it may cause a lot of trouble---you can't imagine ___ fantastic fun web chatting is.---really?but it may cause a lot of trouble sometimes.A.whatB.howC.whyD.when

---you can't imagine ___ fantastic fun web chatting is.---really?but it may cause a lot of trouble
---you can't imagine ___ fantastic fun web chatting is.
---really?but it may cause a lot of trouble sometimes.
A.what
B.how
C.why
D.when

选A
句意:“你想像不到网上聊天是多么的有趣.”“真的吗?但有时也会带来很多麻烦事.”fun为不可数名词,前面要用疑问代词what修饰.

A

A