Complex sentence: Hawking was concerned that he was viewed as a lazy and difficult student, so when asked at the oral to describe his future plans, he said, If you award me a First, I will go to Cambridge.
Split into simpler sentences: Hawking was concerned that he was viewed as a lazy and difficult student. So, when asked at the oral to describe his future plans, he said, If you award me a First, I will go to Cambridge.