Cover of Focus 4 (2nd edition) - Student's Book

Answer — Exercise 3

7.7 - Use of English·Focus 4 (2nd edition) - Student's Book

Pregunta

Choose the correct option, then answer the questions.

Respuesta

  1. preceded
  2. historic
  3. Currently
  4. affected; sight
  5. advice

Answers:

  1. To locate submarines.
  2. He made GPS available to all civilian airlines.
  3. Four systems US / Russia / EU / China.
  4. You’d be up to six miles away from your true location.
  5. By measuring the melting of the ice caps.
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Más ejercicios en 7.7 - Use of English

Ex. 1
Ex. 2
Ex. 4
Ex. 5
Ex. 6
Ex. 7
Ex. 8
Ex. 9
Ex. 11