MCQ Practice English 📖 Fill in the gap : We are friends. We -----each other for years. A have been knowing B have known C knew D know 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 PreviousFill in the gap : How long is it since you ----him last? NextFill in the gap : We -----dinner when the phone rang.