Question

Not until he promised to return it to me as soon as possible ____ my electronic dictionary to my classmate.

A．had I lent	B．did I lend
C．I had lent	D．I lent

Answer 1

B

试题分析：考查倒装句：句意：直到他答应尽快归还电子词典，我才答应把它借给我的同学。Not until放在句首时，主句要部分倒装，助动词提到主语前面，因为两个动作是同时发生，用一般过去时，所以选B。