Question

【题目】Tom and Mary ________ the park in Beijing. ( )

A.is visitingB.are visitingC.do visiting

Answer 1

【答案】B

【解析】

句意为汤姆和玛丽正在参观北京。现在进行时结构：助动词 be ( am / is / are ) +现在分词，Tom and Mary两个人后面系动词用are。参观visit现在分词为visiting。故答案为B。