Is this museum ______some German friends visited the day before yesterday?

A.which

B.that

C.where

D.the one

答案及解析： D

解析：

解题时, 可将疑问句改成陈述句, 从而使难度下降。 This museum is the one (that)someGermanfriends visited the day before yesterday. visit 为及物动词, 后接宾语。关系代名词用作宾语时, 可省略。