【题目】_______ English curriculum encourages is that teachers should create a rich language environment in the classroom.
A. That
B. Which
C. What
D. When
在线课程【答案】C
【解析】
考查主语从句。句意：英语课程鼓励的事情是老师应该在课堂里创设一个丰富的语言环境。句中what引导主语从句并做动词encourage的宾语。在主语从句中that不做成分，which要有范围限制，when做状语。故C项正确。