The key answer of exercise 9.4
The key to exercise solutions in chapter Unit 9 - Present perfect continuous for the textbook English Grammar in Use with authors Raymond Murphy from Cambridge University Press
Question
Put the verb into the present continuous (am/is/are + -ing) or present perfect continuous (have/has been + -ing).
Answer
- Maria has been learning
- I've been looking
- are you looking
- She has been teaching
- I've been thinking
- he's working
- She's been working
- you're driving
- has been travelling
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