be fun to do的用法

1.It could be fun to watch them看着他们就很有意思。

2.Ordinarily it would be fun to be taken to fabulous restaurants一般来说，跟别人去豪华餐馆吃饭会是件乐事。

3.There will be lots of fun to watch in the streets during the holidays.节日里街上有热闹看。