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Pen slide 883 Posted 6 years ago
Grammar

Questions about by

Hi teachers~

I can't tell the difference between the two underlined parts.

Genetically modified crops are plants that have been changed USING advanced techniques. These crops are altered BY adding genes from other organisms into their DNA, makingthem easier to grow.

I would appreciate it if anyone could tell me about it.

Thank you in advance~

  

Top answer

You can add "by" before "using" if that's what you're asking. CJ

— CalifJim

  • You can add "by" before "using" if that's what you're asking.
  • CJ
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1 Answers
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You can add "by" before "using" if that's what you're asking.

CJ

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