ГДЗ граматика Англійська мова 7 клас Мітчелл

Choose a, b or c. 

1–a; 2–c; 3–b; 4–c; 5–b; 6–b; 7–b.
1. My mother has worked as a doctor a. since 2010. 2. We haven't seen our grandparents c. for days. 3. They have b. never been to a stable before. 4. Have you c. ever seen wild animals? 5. Our team has won all the matches b. so far. 6. A: b. How long have you known Mark? B: For two years. 7. Maggie is not here. She b. has gone to the supermarket.