21 a) Write the correct form of the adjectives in brackets. 1. Are you (young) than me? 2. Are you (decisive) than me? 3. Are you (good) at maths than me? 4. Which is (high) building in our city? 5. Which is the (short) street in our city? 6. Which is the (lovely) square in our city? 7. Which is the (good) place to meet your friends?