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_____ is not clear to researchers

Enjoy nicotine, alcohol and caffeine only in ............................... 

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:

 Between all the photographs she showed me, there was only one of her husband.

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You've got to stop making decisions about your business on the spur of the ___________ like this, or you'll end up running it into the ground

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions:

Although Facebook is still relatively popular among teenagers, they don’t have the cool factor they once had.

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I lay down on ________ ground and looked up at ________ sky

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The government is spending millions of dollars in its attempt ____________ drug abuse

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:

Ants were the first group of eusocial predatory insects (A) that both (B) lived and foraged primarily (C) in the soil and in rotting vegetation (D) on the ground.

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The man was _______ on ten counts of animal cruelty

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The personnel department requires that all ________ be interviewed at least three times before a hiring decision is made

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Before the invention of the Internet, people couldn’t ________ of such universal access to information

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It is said that many people are moving from rural areas to cities.

I assumed you _______ paying for the repairs until the end of last year.

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I.....................my old friends at the airport tonight

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 Pesticide residues in fruit and vegetable can be ________ to health

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If he were better qualified, he ___________ get the job

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When Nam came, I ......................TV

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Corracar Lid. is ------ looking for new ways to expand its transportation network

I could not buy a Christmas tree and some presents for my three boys,  _____ I had to use the money to find a place to live

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 After graduating from university, I want to ____ my father's footsteps

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I have already spoken about the ____________ of his speech