MCQ Practice English 📖 By 2010 , I ----- for this firm 15 years. A have worked B will be working C will have worked D will work Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up PreviousBefore my father ---- a house on the plot , paddy was grown here . NextBy the middle of the twenty first century , the computer ----- a necessity in every home.