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_____ is not clear to researchers

Câu hỏi liên quan

• Choose the best answer: 
  Which of the following is not a kind of meat?

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  We watched a documentary about the story of human ____________ over the last three million years

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  "Why did you ask?" "Oh, no ________________ reason, just making conversation."

ZUNIA12

• Circle one option (A, B, C or D) to indicate the underlined part that needs correction in each of the following questions.

  I have an (A) uncle, an (B) honest man, who is living in the (C) home for the (D) elderly.

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  He was spying ____________ her through the keyhole

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  During his 10-year tenure at Disney, he oversaw the company's ____________ as a major producer of TV programming

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  He puts some time ________________ each evening to read to his children

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  I admired her for being confident _______ her age

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  I ate some expired cakes 3 hours ago. Now my stomach hurts a lot. I think I have ________

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  Let’s have some tea. It ________________ chilly

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  We didn’t spend ........... money

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  When booking a flight, it is wise to ------- the guidelines for luggage size on the airline’s Web site.

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  She claimed that the government had only changed the law in order to ____________ their critics

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  Potassium has a valence of positive one because it usually loses one electron when ________ with other elements

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  The study made important __________________ to the field of corporate economics.

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  The teacher requires Rose _______by heart 15 English words each day

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  The problem of finding transport to the outback was _________ by the recent torrential rains

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  Please don't ____________ what I've just told you to anyone else

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  The announcement of John Stanton's retirement was not well received by most of the staff members, but Leslie, his long time friend and colleague, was extremely ……. to hear that Mr Stanton will now be able to enjoy some leisure time

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  Mary's boyfriend is a nice enough guy, but some of the ridiculous things he says—I don't think he's playing with a full ___________