Sb. spend(某种人称时态)+时间/钱+on sth./ (in) doing sth.
It's important/necessary/useful/useless/common…(for sb.) to v…
It's nice/kind of sb. to v..
It's time for sb. to do sth.
It's a waste of time to…
I will work hard to make my dream come true.
I hope your dream will come true one day.
It takes sb. +时间+to do…
It's …years/days since sb. +ved
It's great fun to do=sb. have great fun doing
It's a pity that…
，我们将会及时处理。
