Question

I promised ________ ,so my parents feel very happy． [　　] A． study hard B． to study hard C． study hardly D． to study hardly

Answer 1

答案：B
解析：

promise to do sth．“许诺做某事”，故排除A和C。另外hard“努力地”，hardly“几乎不”，这两个词都是副词，但根据题意应该是努力学习，故选hard。