we knew little about it____his mother told usAif Bafter Cthat Duntil

问题描述:

we knew little about it____his mother told us
Aif Bafter Cthat Duntil

答案:D
解释:until 直到,在...之前、
翻译:在他妈妈告诉我们他的情况之前,我们对他了解很少。
祝你学习进步,更上一层楼!请记得采纳,谢谢!(*^__^*)

D