The railway was opened traffic April 4, 1985 A. to, on B. to, in C. by, on D. fo

 The railway was opened ____traffic ____ April 4, 1985

　A. to； on B. to； in C. by； on D. for； on

试题答案

A。be opened to traffic的意思是“通车”；在具体的某一天之前通常用on。