When you________, use a handkerchief to cover your nose and mouth. This is particularly necessary in public places.
If you make most of the equipment, there will be rise in production.
People a monument to honour those people who devoted their lives to their country.
Look! Every player in our team is doing their best. It seems our team is going to win.
I am sorry that I can not meet you at the airport. I Changsha by the time you come back from abroad.
After the explosion ,the roads are full of people leaving the city