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Expression of IdeasEasyTransition introducing an example of tool use

Expression of Ideas practice question

Some birds use tools. ____ the New Caledonian crow bends twigs into hooks to pull grubs out of tree bark.

Which choice completes the text with the most logical transition?

  1. A. For instance,Correct
  2. B. However,
  3. C. As a result,
  4. D. In contrast,

Answer: A. For instance,

A general claim, then one specific bird that illustrates it. 'For instance' introduces an example.

Why the other answers are wrong

B. However,
The crow supports the claim; there is no contrast.
C. As a result,
The crow's behaviour isn't a result of the general claim.
D. In contrast,
The crow is an instance of tool use, not a contrast to it.

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