I couldn’t cut the grass because the machine_______ a few days previously A. broken down B. has been broken C. had broken down D. breaks down28/30 I couldn’t cut the grass because the machine_______ a few days previously A. broken down B. has been broken C. had broken down D. breaks downNhập câu trả lời ở đây0/3000 ký tựGiải thíchĐáp án Chọn đáp án C