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With masses of homework _____, I can hardly spare time to practice playing the piano．

Please go on trying, I’m sure the efforts you are ________ will pay off.

–Who is the man talking to the headmaster? 
–A professor ________ a visit to our school.

–I’d like to buy a new CD player.     –Well, we have several models ________.

I know that no one likes the feeling of _______, but you can’t draw their attention in that way.

At the sight of the _____ scene, he was almost _____ to death. 

U．S．President Barack Obama arrived in China’s economic center Shanghai on Sunday night, November 15th 2009, ___ a state visit to China．

Having come to study in England, Wang Li had difficulty ______ the new environment.

The teacher wondered whether those ______at the back of the classroom could hear him.

____by the horrible earthquake, many buildings needed to be repaired in the capital of Haiti.