After washing the clothes,Mum____them up in the porch A,hang

題目：

After washing the clothes,Mum____them up in the porch A,hanged B hung C hunged D hang
我知道A和C是不可能的,在B和D里那一個是對的?說出原因,

解答：

選擇hung 是hang表示掛起的過去式.
用原形肯定不合適.