It was not until__to prepare her lessons.

题目

It was not until__to prepare her lessons.
A.her mother came in; the girl began
B.did her mother come in; thegirl began
C.did her mother come in; didthe the girl begin
D.her mother came in; did the girl begin

答案

It was not until her mothercame in (that) the girl began to prepare her lessons.强调句.而且不用倒装 当Not until位于句首时,句子要倒装.not until的强调结构为:It is / was not until+从句/表时间的词+that+....