2. I think that triangular stamps are rarer than rectangular stamps
3. I think that excursion to the National Picture Gallery is more interesting than walking tour to Greenwhich
4. I think that pictures by Repin are better-known than pictures by Constable
5. I think that English is more widely spoken language than German
6. I think that population of China is bigger than population of Japan
7. I think that the Russian language is more difficult than the Spanish language
8.I think that staying at hotel isn't as cheaper as staying at a hostel
9.I think that travelling by plane is quicker than going by train