. First of all, TV is not only a convenient source of entertainment, but also a (2) ______ cheap oneĐoạn văn22/30First of all, TV is not only a convenient source of entertainment, but also a (2) ______ cheap onecomparativelyconceitedlycompcecthtvelycasuallyGiải thíchĐáp án AGiải thích: comparatively: khá, tương đối