--Could you tell me whom the radia ____by?A,is invented B,was inwented
问题描述：
--Could you tell me whom the radia ____by?
A,is invented B,was inwented
答
答案是A
答
A...
事实用现在式。。
答
Could you tell me whom the radia ____by?
A)is invented
答
A
答
英语专业回答：A解析：could在这里不是can的过去式,而是表示征求!