Customers can inquire about the status of their orders by______calling our hotline or visiting one of the store branches.

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问题 Customers can inquire about the status of their orders by______calling our hotline or visiting one of the store branches.

选项 A、every
B、either
C、just as
D、next

答案B

解析 与并列连词or搭配使用的(B)either为正确答案。either A or B表示A或B中任一的。固定搭配either A or B在这里连接了动名词短语calling our hotline和动名词短语visiting…branches。
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