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The theory he ____ about black hole isn’t understood by most of people.
A .put up       B put down       C put off        D put forward

Nowadays no one can ignore the power of____, because they can expose the truth to the public so as to solve the problems.

I want to leave now; I can’t ____ nothing useful here.

We should take exercise now and then. I believe we will ___________ it a lot.

—Oh, my God! It’s just a sea of cars. How can you ______ your car?
—That’s easy. Mine is colored differently from any other one.

Because of the hard work of the farmers, the desert finally ______ rich farmland.

---- Do you feel like walking there or shall we _____ bus?
---- I’d like to walk. But since there isn’t much time left, let’s______ taxi.

Lack of money _____ her not continuing her studies．

When the thief found the police had already _____ him, he ran away quickly．

The film fans all ______ when they learned that Jackie Chan and Jet Li would pair up for the first time in the action film．