问题
Which of the following is NOT right?
A:It was not until I reached London that I realized that my English was so poor
B:Not until I reached London did I realize that my English was so poor
C:I didn’t realize that my English was so poor until I reached London
D:It was not until I reached London that did I realize that my English was so poor
B:Not until I reached London did I realize that my English was so poor
C:I didn’t realize that my English was so poor until I reached London
D:It was not until I reached London that did I realize that my English was so poor
正确答案是：
