32. It's ten years since the scientist _______on his life's work of discovering the valuable chemical.
| A．made for | B．set out | C．took off | D．turned up |
相关知识点
推荐试卷
32. It's ten years since the scientist _______on his life's work of discovering the valuable chemical.
| A．made for | B．set out | C．took off | D．turned up |
试题篮
()
粤公网安备 44130202000953号
