Cover of the textbook Focus 3 (2nd edition) - Student's Book

The key answer of exercise 3

The key to exercise solutions in chapter 5.2 - Grammar for the textbook Focus 3 (2nd edition) - Student's Book with authors Sue Kay, Vaughan Jones and Daniel Brawshaw from Pearson Education

Question

Read and complete the text with a, the or Ø (no article). Then listen and check. What has Jack Ng invented and why?

Answer

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More exercises in 5.2 - Grammar