Some workers are busy building a monument,one______the national hero

When crossing the street, you should always________the traffic. [ ]

Don’t put the waste on the ground.——Oh, I’m very sorryI ____ the dustbin there

_____ U2, the Irish rock band from Dublin perform a concert in Beijing, tell me in advance.

Every man in this country has the right to live where he wants to, ____ the color of his skin