19.----What did he want to know,Anne?

-----_______I could finish writing the report.

A.     When was it         B.It was when that         C.It was when    D.When it was that

【解析】D：本句承接上文考查know的宾语，所以回答应该是陈述语序的名词性从句。When 引导的强调结构的特殊问句作宾语，用陈述语序。