Mr White said that he had ______visited the Great Wall before.It's his first time to come to Chi

Mr White said that he had ______visited the Great Wall before.It's his first time to come to China.

我觉得it‘s 是it was，it指的是前面visit the Great Wall这件事，所以不能是never
once 是一次的意思，和后面的句意重复

B,.It's his first time to come to China.

应该选 B 怀特先生说他以前从来没有参观过长城 这是他的第一次来中国

答案不对的，你要相信你自己，选择B
前面都说了怀特先生说他从来都没有游玩过长城。这是他第一次来中国
所以明显选择B，从来都没，因为后面说这是第一次来中国，说明之前没来过中国，既然中国都没来过，那何谈游览长城呢，呵呵
不知是否明白了O(∩_∩)O哈！