－MrHarry, we want to hear what you think about the reform being carried out in our school.－OK, I ___ to that

I’m sorry I delayed_________ your letter because I have been quite busy these days.

The number of people_____were killed in the accident_____been announced yet.

The website can ___________ you where Ganggu is. There are so many visitors there now.

_________ is known to all，good friends _________ happiness and value to life