Mr. Green stood up in defense of the 16-year-old boy, saying that he was not the one_______.
——We must thank you for taking the trouble to cook us a meal. ——____.
——Do you mind if I smoke? ——____
——So you missed the meeting. ——____. I got there five minutes before it finished.
____ from endless homework on weekends, the students now find their own activities, such as taking a ride together to watch the sunrise.
Young as he is, David has gained ____ rich experience in ____ society.