these chairs and desks are broken.they need___ a.to repair b.repairing c.repair d.repaired

问题描述:

these chairs and desks are broken.they need___ a.to repair b.repairing c.repair d.repaired

先弄清need 的用法‘ 物作主语时后接doing / to be done ,人作主语时后接to do .这里是物作主语,故用ING 形式,即B对