Not until I came home last night to bed. A. Mum did goB. did Mum goC. went MumD. Mum went

问题补充：

Not until I came home last night to bed.

A. Mum did go

B. did Mum go

C. went Mum

D. Mum went

答案：

A. Mum did go

(答案→)B. did Mum go

C. went Mum

D. Mum went

解析：考查倒装语序的用法。not until 位于句首时要用半倒装的句型，把助动词did提到主语Mum的前面。所以答案为：B