Viết lại các câu sử dụng as...as hoặc các từ trong ngoặc 1. New cars are more expensive than used cars. (cheap). New cars . 2. Keeping fit and staying healthy are equally important. (important) Keeping fit . 3. Maria and a mouse are both quiet. (quiet) Maria is . 4. A bee is smaller than a bird. (big) A bee . 5. Coffee is worse for your health than tea. (good) Coffee . 6. Calculus is harder than algebra. (easy) Calculus .