—Yeah, it _____ us a whole year to finish the work.
A:took
B:has taken
C:takes
D:was taking
设计实验证明“尺子伸出得长短,音高会发生变化?”
对中西学的态度是区分近代中国不同政治派别的依据之一。下列言论属于维新派的是
4乘以8等于32