解析：(It is said) that Einstein felt (v_考试试题_在职申硕英语

【单选题】 (It is said) that Einstein felt (very) (sad) about the application of his theories (onto) the creation of weapons of war.
A．It is said
B．very
C．sad
D．onto

网考网参考答案：D
网考网解析：
改为to。apply A to B“将A应用于B”是固定结构，当apply转为名词application时，也还保留该介词，不该用onto。查看试题解析出处>>