Last summer I took a course on _______.
A:how to make dresses
B:how dresses be made
C:how to be made dresses
D:how dresses to be made
﹣ 5,﹣2.626 626 662…,0,π,﹣ 74 ,0.12,|﹣6|.
﹣|﹣5|=____ .
—It's my pleasure.