Alice has gone to the classroom and she didn’t say .A. when did she come backB. when would

问题补充：

Alice has gone to the classroom and she didn’t say .

A. when did she come back

B. when would she be back

C. when she came back

D. when she would be back

答案：

A. when did she come back

B. when would she be back

C. when she came back

(答案→)D. when she would be back

解析：英语宾语从句中一般为陈述语序。句意：爱丽丝已经去了教室，她没有说什么时候回来。结合语境可知宾语从句中描述的是站在过去角度看，将来发生的动作，故用过去将来时态。选项B语序有误，故选D。