.Many scientists believe that now we can study the behavior of a three-year-old child to see ____ they will grow up to be criminals.

The teachers ________ on the blackboard with chalk in the future.

If he _______ here next week, I _______ there.[ ]

Hundreds of students came to Shaoxing to work _______ the World Choir Games in 2010, [ ]

Oh, the traffic is too heavy.－Let’s change ________route to the airport.