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Please arrive at the doctor’s office ------ fifteen minutes before your scheduled appointment.

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If you are requesting more than one computer system, please _____________   a separate form for each system unless you are using a lab in which several identical stations are needed.

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People crowded the streets on a ............... Day to watch  .......... parades.

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Although we are far away from each other, we still .....................

The players' protests ................ no difference to the referee's decision at all

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Mr. Ross,____________ is repainting the interior of the lobby, was recommended by a friend of the building manager.

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 The steroid solution the pharmacy made is ------- contaminated with a fungus because it has sickened more than 160 people.

I suppose I found it hard at my new school because I just ................... to the situation.

_______ is a kind of energy formed from the remains of dead plants and animals. 

I don’t object to people being vegetarians, but it gets on my nerves when they’re....................about it.

National Parks and Preserves,  _______ public lands or bodies of water within a country, set aside by the government to protect ecosystems, plant and animal species, scenic landscapes, geologic formations  

 - “Can you take the day off tomorrow?”

- “Well, I’ll have to get  ................ from my boss.”

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Around 150 B. C. the Greek astronomer Hipparchus developed a system to classify stars according to brightness.

When it plays as a communicator, it can help us_________with other computers around the world.

A quick look would reveal that France has twice ................ computers.

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The  ____________  building will be closed for renovation work throughout December.

People who want to succeed in their chosen careers will have to plan care¬fully in order to ___ the changes in the world of work.

Where have you been? You were .................  to be here half an hour ago.

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If I it was a formal party, I wouldn't have worn my old jeans and a jumper.

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What _________ you do if you were a millionaire?

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The new president has ______________  to pick up where the previous CEO left off.