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Diamondrg Posted 20 years ago
Grammar

preposition 3

Infectious diseases are those which are caused ---- an invasion of the body ---- organisms from outside.

A) through / with
B) by / by
C) over / through
D) in / without
E) upon / within

Which one is correct? Is A wrong? why?
  

Top answer

Generally, things are caused by. So B) by/by seems the best choice.

  • Generally, things are caused by.
  • So B) by/by seems the best choice.
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2 Answers
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Generally, things are caused by. So B) by/by seems the best choice.
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I agree with Barbara.

Infectious diseases are those which are caused ---- an invasion of the body ---- organisms from outside.

Which one is correct? Is A wrong? why?

Things are caused by, not through.

... an invasion of the body ____ ('with' is not the correct preposition)

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