根据活动机能分，课外活动可分为______。

多项选择题评价的基本要求有______。

多项选择题班主任在班级管理中的地位是______。

单项选择题He will answer your questions ______ you ask him.

单项选择题—How much did the new coat（）your sister —She（）350 yuan for it.

A. cost paid
B. spend cost
C. pay cost
D. take paid

单项选择题The river is（）

A. four metres wide
B. four metres' wide
C. four metre wide
D. four metre in width