–What’sthesecretofsuccess,Dad?–Moretimeandeffort,

问题详情：

 –What’s the secret of success, Dad?

–More time and effort, ________ you’ll make it some day.

       A. or                        B. because          C. but                   D. and

【回答】

D

知识点：连词

题型：选择题