单选题
Beginning March 31, Western Service will regularly ______ two new bus routes along Hathfield Avenue.
(A) operate
(B) operating
(C) operated
(D) operative
A
B
C
D
【正确答案】
A
【答案解析】
[结构+语法] 动词位置，＜助动词+动词原形＞
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