问题
选择题
Wang Lin failed to be admitted by Hong Kong University last year，and only then________the importance of English.
A．he finally realized
B．he had realized
C．had he realized
D．did he realize
答案
答案：D
考查倒装句。Only放在句首，且强调状语时，句子要使用部分倒装。排除AB。再根据句意可知这里不能使用过去完成时，故D正确。句意：王林没有被香港大学录取。直到那时他才意识到英语的重要性。