1. The building is.... (big) of the two.2. For me ...(difficult) subject at school is Biology.3. There were five sons

 1. The building is the biggest of the two. 2. For me the most difficult subject at school is Biology. 3. There were five sons in the family. Jack was the oldest. 4. The weather in England was much more changeable than it had been expected. 5. They waited for further instructions.