If you want to learn about Liu Xiang，let me know，__________you?

The policeman told us __________ the street when the traffic light was red.

I think it’s better to give it a second thought so many of us consider it a risk．

construction site in our city the workers have uncovered an ancient wall that_______ to keep the enemy out of the city, but it requires further evidence.

Many animals _____________the same fate as the large extinct elephant because of the environment