By talking with them，I get to know ________ Russian people see their country and the US.
| A．what | B．when | C．why | D．how |
I like _____ in the spring when the weather is warm and everything begins to grow.
| A．this | B．that | C．these | D．it |
Is it to hold the 2010 World Exhibition _______ makes Shanghai the focus of the world?
| A．when | B．that | C．which | D．what |
We can never expect________bluer sky unless we create___________less polluted world.
| A．a; a | B．a; the | C．the; a | D．the; the |
Mike ______ have known the solutions to this problem, or he would have told us.
| A．mustn’t | B．shouldn’t | C．can’t | D．needn’t |
The confidence of the Chinese film makers ______ by Avatar, the release of______ has not only set a good example for the Chinese film industry but also embarrassed our directors, who lack professional ethics.
| A．have blown; that | B．has blown; which |
| C．has been blown; which | D．have been blown; that |