
Answer — Exercise 4
GRAMMAR - Unit 3·Focus 3 (2nd edition) - Workbook
Question
Choose the correct forms.
Answer
- have you been working; have been working; might not
- have seen; did you last see
- was sitting; heard
- had met
- to know; had provoked
- to talk; to keep
- might have helped
- feeling
- broke
- was; hadn’t expected
- was he thinking; was painting
- is; could