Some teenagers turn a deaf ear to their parents’ advice, ________ they know it does good to them.
He ______ at once when I promised to help him.
After going into the concert hall, the mother _____ a friend and went over to greet him.
According to the school rules, no student __________ go out of the school after eleven o’clock at night without the teacher’s permission.
Going on a trip into space must be quiteexciting experience.
After the school sports, our headmaster ______ the prizes.