Mark the letter A, B, C or D to indicate the sentence that is best written from the words/phrases given.Câu hỏi They/ be ask/ lock/ door/ before leaving/ everyday. A. They are asked to lock the door before leaving every day. B. They asked to lock the door before leaving every day. C. They ask to lock the door before leaving every day. D. They are asked to be locked the door before leaving every day.