问题描述：
改否定句和根据汉语提示完成句子
Linda has already watered the plants
(改为否定句)
Linda ____ watered the plants ______
完成句子(每空一次)
How many countries _____ ______ ______ the last Olympic Games?
Linda has already watered the plants
(改为否定句)
Linda ____ watered the plants ______
完成句子(每空一次)
How many countries _____ ______ ______ the last Olympic Games?
问题解答：
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