如果交通票据还没有落实，______和______在带团期间，要随时与旅行社联系，询问班次有无变化。
参考答案：地陪 全陪
--Why did you come a long way round?---I was afraid ___ near the fierce dog because I was afraid ___.
A．of walking; to be bitten
B．to walk; of being bitten
C．to walk; to be bitten
D．of walking; of being bitten
第一学段（1—3年级）中，学生将熟悉哪些常见的量？
