Cover of the textbook Focus 5 - Student's Book

The key answer of exercise 3

The key to exercise solutions in chapter 4.3 - Grammar for the textbook Focus 5 - Student's Book with authors Vaughan Jones and Sue Kay from Pearson Education


Read the GRAMMAR FOCUS and find an example of each infinitive structure in the text in Exercise 2.


  1. failed to take off; is to be looked after
  2. determined to raise
  3. need to nurture
  4. the first to market
  5. to keep your virtual friend alive not to be deterred
  6. To be emotionally attached to gadgets