Lucy ande Lucy's mother___going to visit the Great Wall next week_英语解答

Lucy ande Lucy's mother___going to visit the Great Wall next week.
那个空答案说是填is 但是我认为是1+1 应该是 are

人气：335 ℃　时间：2019-09-30 19:31:48

解答

应该是are
这里主语是Lucy and Lucy's mother(1+1),复数概念
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