题干

— Jack works very hard, but he can't get good grades in exams.

— That's because he can't study _______.

A:carefully

B:successfully

C:wisely

D:quickly

上一题 下一题 0.0难度 选择题 更新时间:2017-01-17 02:13:43

答案(点此获取答案解析)

C