The key answer of exercise 3
The key to exercise solutions in chapter 3.9 - Self-check for the textbook Wider World 4 - Workbook with authors Damian Williams from Pearson Education
Question
Complete the sentences with the Present Perfect Continuous form of the verbs in brackets. Then write for, since or all.
Answer
- have been working; since
- has been studying; since
- has been running; all
- haven't been waiting; for
- have been making; for
- hasn't been writing; since
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