Vivien worked very hard at all her lessons. she became the top student in her class.A. I

问题补充：

Vivien worked very hard at all her lessons. , she became the top student in her class.

A. In order to

B. As a result

C. As usual

D. For example

答案：

A. In order to

(答案→)B. As a result

C. As usual

D. For example

解析：句意:Vivien在所有功课上都学得很努力。结果她成为了她班上最好的学生。in order to 为了，后跟动词原形；as a result 结果是，常放在句首；as usual 像往常一样；for example 例如。根据句意可知选B。