Question

______ for something, a receipt is given to you.

A．Paying	B．Having paid
C．When you have paid	D．To be paying

Answer 1

C

考查非谓语动词。pay和give有先后关系，应该用完成时；排除A、D；B项缺少逻辑主语，故排除；C项符合题意。故选C。