---did james fix the computer himself ----he__,because he doesn't know much about computersA had it fixed Bhas it fixedB为啥不对?

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---didjamesfixthecomputerhimself----he__,becausehedoesn''tknowmuchaboutcomputersAhaditfixedBhasitfixe

---did james fix the computer himself ----he__,because he doesn't know much about computersA had it fixed Bhas it fixedB为啥不对?
---did james fix the computer himself ----he__,because he doesn't know much about computers
A had it fixed Bhas it fixed
B为啥不对?

---did james fix the computer himself ----he__,because he doesn't know much about computersA had it fixed Bhas it fixedB为啥不对?
A had it fixed
因为问的问题 是过去时态---did james fix