---What does Tom’s uncle do? ---He is a teacher. He __________ physics at a school now.
--- Hi, Ann. How can you improve your English so much? --- Oh, nothing difficult. The _____ you work at it, the _____ progress you will make.
--- Did Jack come back early last night? --- Yes. It was not yet eight o’clock ______ he arrived home.
---Why are you so happy? --- ______ the teacher’s help, I found the answer ______ the question.
--- What he enjoys _________ great and interesting. --- Yes, but it’s dangerous.
---What is happening over there? --- Oh, about ________ the fans are waiting here. They want to see the great singer.