Bài 1 :chọn lỗi sai trong các từ in đậm trong mỗi câu sau: 1. Each of the hotel's 500 rooms were equiped with high quality air conditioning and television. A.hotel's B. were equiped C.quality D.conditioning 2. The problem of inadequate salaries for teachers not only exists in smaller communities but also in large cities. A . problem B.for C.not only D. communities 3. If the water level had raised any higher, the dam would probably have broken down. A. water level B . raised C. higher D. probably 4. Plants , which make up to 90 percentage of visible living organisms, get their food energy from sunlight. A.make up B.percentage C.living D.food