The high-speed rail Xiamen with Longyan is to open on June 30th.
A. linking
B. links
C. linked
D. to link
网友回答
(答案→)A. linking
B. links
C. linked
D. to link
解析：考查非谓语动词，该处作定语，相当于which links,link与他的逻辑主语rail之间是主动关系，所以选择doing的形式
句意为，连接厦门和洛阳的告诉铁路将会在六月三日开通。