1. The animal which has one or two horns on its snout is the rhinoceros.
2. If the story weren't too boring for me, I would remember. ( câu điều kiện loại 2 )
3. I advised Nam to concentrate on studying English.
4. Although Mr.Benson is old, he runs 8 miles before breakfast. ( although + mệnh đề )
5. The owner of the house is thought to be abroad.