He transplanted the little tree to the garden _____ it was the best time for it.
____ the temperature might drop, coal was prepared for warming.
——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.