The monkey is jumping up and______ .It is so funny.(填入合适的介词

问题描述:

The monkey is jumping up and______ .It is so funny.(填入合适的介词

up and down,固定搭配
jump up and down 跳上跳下down是介词?可以的啊。down可以是名词,副词,介词,形容词和动词。prep.(从高处)向下; (表示位置)在…的下方; (表示方向)沿着…向下; (表示时间)自…以来