It is safe to eat chicken that ________fully, but most people still dare not do that because of the H7N9 bird flu .
Linda doesn’t know __________about her problems.
The train is running _____the speed of 200 kilometers per hour.
I think you should spend as much time as you can_____ Maths and English.
—When will Chinese Running Man begin ? —It _______ for ten minutes.
____________we had at Disneyland!