问题描述：
| As your instructor (教师) advised, you ought to spend your time on something______ researching into. |
| [ ] |
| A. precious B. worth C. worthy D. valuable |
考点提示：形容词
最佳答案： | B |
As your instructor (教师) advised, you ought to spend your time on something______ researching into. [
As your instructor (教师) advised, you ought to spend your time on something______ researching into. [
最佳答案： 