MCQ Practice English 📖 If we want concrete proof ,We are looking for--- A A cement Mixer B Building material C Clear evidence D Something to cover a path 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 PreviousIf we had a boat , we --- the river. NextIf we want concrete proof ,we are looling for ----