用所给词的正确形式填空they can_______(plant)trees in spring .look,they are__(plant)trees now
问题描述:
用所给词的正确形式填空they can_______(plant)trees in spring .look,they are__(plant)trees now
答
plant ,can+do 情态动词后加原形
planting ,be+doing 现在进行时
答
plant planting
答
plant, planting