高中英语语法情态动词——I've had this birthday card,but it doesn't say who sent it.——Could it be from Ron?这里情态动词could可以用May吗?

问题描述:

高中英语语法情态动词
——I've had this birthday card,but it doesn't say who sent it.
——Could it be from Ron?
这里情态动词could可以用May吗?

不可以,could是假设的语态。may没有这个用法

一般may用于较为肯定的推测。

不可以的吧.
can/could表猜测,may表较为肯定的猜测或请求.