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－What will today’s talk be about?
－In the lecture ______, the professor will tell us something about modern English usage.

—What made little Tony so unhappy and cry in his room?
— ______ to go hiking with his brother.

“You can’t catch me!” Janet shouted, ____ away. 

    how to work out the difficult physics problem ,he asked the teacher for help .

The specialist      at the meeting will give us a lecture next week .

We can hardly      him if we all work in the same school.

It is requested that the reporter _______ to blame for the wrong report.

A direct air route _______ Chongqing and San Francisco is expected to open next month．

______ money, his parents couldn’t send him to university.

The game was so exciting to play that the boy kept his eyes and attention ________ on it, ruining both a lot.