— Spacecraft "Discovery" has failed in the course of launch.— _____? They have been prepar

题目简介

— Spacecraft "Discovery" has failed in the course of launch.— _____? They have been prepar

题目详情

— Spacecraft "Discovery" has failed in the course of launch.
— _____? They have been preparing for the test.   
[     ]
A. How come?     
B. When        
C. What for        
D. Why not
题型:单选题难度:偏易来源:黑龙江省期中题

答案

A

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