Ｉdidn’t go to bed I finish my homework.A. afterB. whenC. ifD. until

问题补充：

Ｉdidn’t go to bed I finish my homework.

A. after

B. when

C. if

D. until

答案：

A. after

B. when

C. if

(答案→)D. until

解析：考查连词。not ..until..直到……才……，句意：直到写完作业我才上床睡觉。选D。