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。