Use the adjective in brackets in thier correct forms of comparison to conmplete the sentences

Use the adjective in brackets in thier correct forms of comparison to conmplete the sentences.
 1. Tea is            coffee.(cheap)
 2. The new harvest machine is                  than the old one. ( effective)
 3. The countryside is                         the town.( beautiful)
 4. A tractor is             a buffalo.( powerful)
 5. My sister is                 me.( tall)
 6. Blue whales are            elephants. ( heavy)
 7. The Mekong River is                                  the Red River.( long)
 8. Do you think English is                            French in grammar?( easy)
 9. My new bed is               my old bed.( comfortable)
 10. The film about my village                    than the book. ( interesting )