问题补充：
and we’ll get everything ready for the taking off.
A. Have one more hour
B. If I have one hour more
C. Given one more hour
D. One more hour
答案：
A. Have one more hour
B. If I have one hour more
C. Given one more hour
(答案→)D. One more hour
解析：考察句型结构，A是祈使句，后面的主语应当是you， B项是从句，而题目是and引导的并列句，不是主从句，C，作状语，而题目是and引导的并列句。D是省略句，相当于we have more hour and we will get everything ready for the taking off.
