I will get it 后是用mend还是mended 为什么 请赐教

I will get it 后是用mend还是mended 为什么 请赐教 I will have it mended you （mend） your bike?Yes,I mended it a moment ago i got my bike ＿ yesterday.为什么填mended,mend哪错了 I will get my bike ------（mend) after school the strap needs mending.it ( ).A has mended B has to be mend I'will get it repaired .这里为什么要加ed? I need ____my bicycle A:mended B:mending C:to mend I get it还是I got it I will remember (have) my watch (mend) 请翻译I just get your sample now and i will send it to our offi I will get it for you