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Theyregarditastheirdutythebestservicetothecustomers.()A.toprovideB.providingC.provideD.Provided

题目详情

They regard it as their duty_______the best service to the customers.(  )

A. to provide

B. providing

C. provide

D. Provided

▼优质解答
答案和解析
答案A 分析句子可知,此处是it作形式宾语.真正的宾语是动词不定式to provide the best service to the customers.故选A项.