While I () with my fiend,she came in.A:am taling B:was talking C:talked D:am going to talking
选B
用过去进行时
翻译
但我在和我朋友说话的时候,她进来了
while引导的时间状语从句,长动作用进行时,短动作用一般时我再问你个问题哈：They haven't decided where to build the new hospital.(改为同意复合句）They haven't decided () the new hospital.They haven't decided where to build the new hospital.(改为同意复合句）They haven't decided ( where they will build ) the new hospital.