问题
选择题
Only __ as an interpreter __ how important it was to practise speaking English.
A.when did I work...I realized
B.when did I work...did 1 realize
C.when I work...did I realize
D.when I worked...did I realize
答案
答案:D
考查倒装句。Only 加状语放在句首,使用部分倒装,从句不倒装,主句倒装。根据题中的时态所以选D。