Why didn't Alice come to school today?

Why didn't Alice come to school today?
I don't know__________
A.why didn't she B.why did she
C.why she did D.why she didn't
答：D
译：今天艾莉丝为什么没来上学?
我不知道他为什么没来.
析：从句主谓语序正常,排除AB. 意思是没来,排除C.
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In the west,it's thought quite rude to leave the dinner table_______you finish eating
A.when B.as soon as C.while D.so that
答：B
译：在西方,一吃完饭就离开餐桌被认为是相当无礼的行为.
考查连词,只有B. as soon as有“一.就.”的意思.