Scientists say it may be five or six years ____ it is possible to test this medicine on human patients.

Where is Jane? Everyone is here her. [ ]

You are very ill. Why _____ to see a doctor?

That T-shirt with Yao Ming’s picture on it belong to David . He likes him a lot .—No, it be his. He hates black color.

The driver drove _______ hit at a big tree and the car came to s stop.