Question

7. Not until Alice had a baby of her own        how hard it was for her mother to have brought up her sister and her on her own. (aware)

直到Alice有了自己的小孩，她才了解她媽媽獨(dú)自將她和姐姐帶大是多么艱難。

Answer 1

7. did she become aware not until引導(dǎo)的狀語放于句首時(shí)，句子要用部分倒裝結(jié)構(gòu)。