Question

 Sophia got an e-mail ______ her credit card account number.

A. asking for                                                      B. ask for

C. asked for                                                       D. having asked for

Answer 1

 答案：A

解析：题干的意思是：“索菲亚收到了一封向她索要信用卡账号的电子邮件”。分析句子结构，______ her credit card account number做后置定语，修饰an e-mail。ask for和an e-mail构成主动关系，所以用现在分词形式，相当于定语从句which asked for her credit card account number。