— What a pity! You ________ it down on your notebook.

— Oh, my god! I forgot his mobile phone number.[ ]

A. could have written

B. should have written

C. must have written

D. would have written

读下图，回答l一2题。

小题1:该图能正确表达出的区域特征是

A．区域具有一定的面积、形状和边界

B．区域内部的特性相对一致

C．区域可划分为下一级区域

D．区域的边界是明确的小题2:半干旱地区多是草原放牧区，湿润、半湿润地区多是农业区，这反映出地理环境影响着区域的

A．发展水平

B．生活特点

C．发展方向

D．发展条件