shou
zhi
____先
洗____
____前
____尺
ji
cai
飞____
自____
____花
刚____
— The _____ of July is your birthday. What do you usually do?
— I usually help my mother with some housework because I want her to have a rest _____ that day.
为了研究物质的某种物理属性.同学们找来大小不同的蜡块和干松木做买验,得到的数据如表所示.