If you take too long to answer questions that stump you, you may end up (4) ______ out of time before you finish.Đoạn văn28/34If you take too long to answer questions that stump you, you may end up (4) ______ out of time before you finish. short running moving cuttingGiải thíchĐáp án B Giải thích: run out of st: hết, cạn kiệt cái gì