In many parts of China the idea boys are more important than girls.A. it has; which B.

问题补充：

In many parts of China, the idea boys are more important than girls.

A. it has; which

B. there exists; that

C. there is existing; which

D. there remains to be; that

答案：

A. it has; which

(答案→)B. there exists; that

C. there is existing; which

D. there remains to be; that

解析：考查there be句型和同位语从句。There be 句型中的be可以换成其它的系动词，如exist, remain等。that boys are more important than girls是一个同位语从句解释idea的内容。句意：在中国的很多地方，都存在着重男轻女的观点。