_______ is said that _______ tourists visit the park every day .

It was too hard for the firefighters to get close to the burning building．All their attempts to rescue the people trapped were

You have a fever. What’s the matter with you——H7N9 is coming now. I have to see the doctor.

Trees on the hills can stop the rains from awaythe soil.

The 7:30 plane hasn’t turned up yet.—-It has gone off its tokeep away from the sudden storm