用at或at the 填空 因为我不会填所以告诉我为什么填什么介词之类的帮忙...答:1 at the greengrocer's, 2 at school, 3 at the stationer's(在文具店), 4 at the hairdresser's, 5 at home, 6 on the dairy (farm), 7 at the grocer's 8 at the butcher's, 9 in the office, 10 at the baker's 11 in church, 12 on the weekend.1 介词, 我在家, I ...