--- I ______ so busily recently that I ______ no time to help you with your math. --- That’s OK. I can manage it by myself.
Having been warned of the likely lung cancer, Mr. White had to _on smoking.
John was asked to deliver a speech on the from high school.
When the mother returned, she saw her son vegetables into pieces.
He was in hospital for six months. He felt as if he was from the outside world.
---How far can you run without stopping? ---- I’ve never tried.(2013,山东)