MCQ Practice English 📖 An ultrasonic wave has ---- a high frequency that it is inaudible. A above B such C therefore D thus 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 PreviousAn ignorant person has prejudice ---- new ideas. NextAnger , even when it is --- has one virtue , it over comes ---- ?
