Cover of the textbook Outcomes Upper-Intermediate - Student's Book

The key answer of exercise 4

The key to exercise solutions in chapter 3 - Making do for the textbook Outcomes Upper-Intermediate - Student's Book with authors Hugh Dellar and Andrew Walkley from National Geographic Learning

Question

Look back at Exercise 3. Notice how so, if and to were used when explaining purpose. Which was followed by:

  • an infinite (without to)?
  • a subject plus verb?
  • the problem you want to solve?

Then complete these sentences.

Answer

  • to is followed by an infinitive / base form of the verb
  • so and if are followed by a subject + verb
  • if is followed by the problem you want to solve
  1. to
  2. so
  3. if

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