The key answer of exercise 1
The key to exercise solutions in chapter 1c - Grammar Revision for the textbook On Screen B1+ - Workbook & Grammar with authors Virginia Evans and Jenny Dooley from Express Publishing
Question
Complete the exchanges with the present simple, present perfect or the present perfect continuous tense.
Answer
- do you look, have been studying
- Have you invited, have been writing
- has decided, has been thinking
- Have you seen, has just left
- haven't heard, haven’t spoken
- Has Dan been looking, hasn’t found
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