– you didn’t turn up at the party last weekend? My plane was delayed by two hours.A. W

问题补充：

– you didn’t turn up at the party last weekend?

-- My plane was delayed by two hours.

A. What was it

B. When was it

C. How long was it that

D. Why was it that

答案：

A. What was it

B. When was it

C. How long was it that

(答案→)D. Why was it that

解析：考查情景交际和强调句型。“你为什么没有参加上周的晚会？”“我的飞机晚点了两个小时。”本题考查的是强调句的疑问式。It is ...that可以强调除谓语意外的任何成分，强调人时可以用who。本题强调的是why，即没去晚会的原因。故选D。