Question

Not until his mother came in ________to prepare his lessons

1. A.
   did the boy begin
2. B.
   the boy began
3. C.
   began the boy
4. D.
   the boy did begin

Answer 1

A
not until 位于句首，句子使用部分倒装。C答案为完全倒装。
考点：考查倒装。
点评：倒装分为部分倒装和完全倒装。要分清他们的概念及使用规则。