Bài 6. Chọn đáp án đúng. 1.His illness was ________ than we had thought at first. A. much serious B. more serious C. serious D. most serious 2. Nam is _______ in his class. A. taller B. the most tall C. the tallest D. more tall 3. Traveling by plane is _______ than traveling by car. A. fast B. more fast C. the most fast D. faster 4. Actually, today I feel ______ than I did yesterday. A. the worst B. worst C. worse D. bad 5. Could you speak Vietnamese _______ than, so I can understand what you mean? A. more clearly B. clearly C. the most clearly D. the clearest 6. That flight ticket is _________ of all. A. expensive B. the most expensive C. more expensive D. the expensive 7. Phong works ________ than most of him friends. A. a lot more hardly B. more hardly C. many harder D. much harder 8. I tried to spend ______ money. A. little B. less C. the least D. the less than 9. My friend is much _______ than me. A. prettier B. pretty C. the prettiest D. more prettier 10. My mom speaks Korean ______ I do. A. fluently B. more fluently than C. more fluently D. most fluently