Cover of the textbook Focus 2 - Student's Book

The key answer of exercise 2

The key to exercise solutions in chapter 2.2 - Grammar for the textbook Focus 2 - Student's Book with authors Daniel Brayshaw, Sue Kay and Vaughan Jones from Pearson Education

Question

Read about e-ink. Who was Joe Jacobs and why did he have a 'Eureka!' moment?

Answer

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More exercises in 2.2 - Grammar