Complete the sentences.Use the comparative or siperlative form of the adjectives.1)An elephant is____(heavy) than a dog.2)Anna is the___(tall)girl in her class.3)It rain all week.It was the__(bad) holiday we are ever had.4)Trai...

Complete the sentences.Use the comparative or siperlative form of the adjectives. 1)An elephant is____(heavy) than a dog. 2)Anna is the___(tall)girl in her class. 3)It rain all week.It was the__(bad) holiday we are ever had. 4)Trains are usually___(fast) than buses. 5)I think playing chess in____(interesting) than playing computer games. 6)It is the____(expensive) CD I've ever bought.