Trang chủ/Câu hỏi/What is the problem?Quay lạiClick meXem chi tiết bài testChia sẻWhat is the problem?Chọn một đáp ánCâu hỏi: What is the problem?AC. The wall is too weak.BD. The phone number was wrong.CB. The office is closed.DA. The necessary tools are unavailable.