Question

One Friday,we were packing to leave for a weekend away       my daughter heard cries for help

A．after

B．while

C．since

D．when

Answer 1

D【命題動向】考查狀語從句。
解析一：根據固定搭配：be doing sth… when…，正在做某事突然……，符合文意，when在句子中引導時間狀語從句。
解析二：句意為：“一個星期五，我們正在打點行裝要動身去度周末，就在那時，我女兒聽到了呼救聲”四個選項中只有“when”可作并列連詞，表示“就在那時”，且前一分句常用于固定的時態：was／werc doing；had done；was／were about to do…等。故答案為D項。