It's ten years since the scientiston his
题型:选择题
问题:
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
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