【题目】Not until he went abroad to further his study_______ the importance of English.
A.has he found
B.he has found
C.did he find
D.he had found

【答案】C
【解析】这题考查倒装句中部分倒装的用法：not until放在句首时，从句不倒装，主句倒装。其结构为助动词+主语+其他。由前面的went，可知是过去时，选C。