Complete the questions with the correct comparative/superlative form of the words in brackets,and then choose the correct answer. 1 Which planet is(close) to the sun? A Mercury B Earth 2 When did(strong) earthquake hit Chile? A 1960 B 1990 3 Which animal is(dangerous) than the elephant? A Polar bear B Lion 4 What are becoming more and(popular) these days? A online games B comic books 5 Which is(high) mountain in Europe? A Mount Blanc B Mount Elbrus 6 What is one of (serious) problems we face today? A heavy traffic. B climate change 7 In which city do we find (tall) building ever made? A Dubai B Taipei
