A:沙特阿拉伯的贝都因人
B:东西伯利亚的亚库特人
C:恒河三角洲的孟加拉人
D:印度尼西亚的达雅克人
The Greens often go to the beach _______ fine afternoons.
We usually __________ to school by bike, but she __________ to school on foot.