Question

【题目】After completing and signing it, please return the form to us in the envelope __________.

A. providing B. provided

C. having provided D. provide

Answer 1

【答案】B

【解析】句意：在填完表格并署名以后，请把它放在提供的信封里返还到我们这里。设空处的非谓语动词和envelope是被动关系，且作后置定语,故选B。