grandma hasn't taken her medicine yet.Maybe she forgeot.(为什么?)
问题描述：
grandma hasn't taken her medicine yet.Maybe she forgeot.(为什么?)
grandma hasn't taken her medicine yet.Maybe she forgeot.
为什么用hasn't,而不是hadn't?
还有,为什么是forgot?
答
这句话要用现在完成时 hasn't taken ,不能用过去完成时 hadn't taken .因为此句话要表达的是过去发生的动作对现在造成的影响和结果.不是表示发生过某一动作之前的动作.用forgot表示过去发生的动作.