Did Peter fix the computer himself?
问题描述:
Did Peter fix the computer himself?
-He _______ ,because he doesn't know much about computers.
A.has it fixed B.had fixed it
C.had it fixed D.fixed it
选C为什么不选A
答
问句中是did 过去时
答句要过去时
短语是have sth done (某事让别人去做)
不是完成时had it fixed 这个是过去时,不是过去完成时!!!!???