1.Complete the sentences with the comparative or superlative of the adjective in brackets.
Model: In winter,Moscow is colder than London. (cold)

1.The River Thames is ... than it was ten years ago. (clean)
2.Wich is the ... museum in London? (large)
3.In September the days start to get ... . (cool)
4.Who can tell the ... jokes in your class? (funny)
5.Is April ... than September in your country? (hot)
6.Are you ... writing or speaking English? (good)
7.Are you ... than your brother? (young)
8.Wait for me! My bags are ... than yours. (heavy)
9.The Empire State isn't the ... building in the world. (tall)
10.Wich was your ... exam result last year? (bad)
11.Is the Mississippi ... than the Missouri? (long)
12.When is the ... time to visit your country? (good)