The old scientist said that he ____to visit their country before long.
问题描述：
The old scientist said that he ____to visit their country before long.
A.invited B.had been invited C.was inviting D.would be invited
答
答案应该是B.
关键动词是邀请.老科学家说他已被邀请不久将访问他们的国家.
所以是已经邀请了；还没有访问,而是在不久后将访问.
这种题最是阴险和无聊啦.