问题
选择题
Not until Betty got to the airport _____ she had lost her tickets.
A．that she realized
B．did she realize
C．where she realized
D．she realized
答案
答案：B
考查倒装。句中否定词not until放在句首，主句的主谓发生倒装，故选B。句意：直到Betty到达机场，她才意识到她的票丢了。