◎ 题干
___ the red switch on the left and the flying machine will swiftly go up into the air and ____its journey.     
[     ]
A. Pressing; begins  
B. Press; begin
C. Pressed; begins  
D. To press; to begin
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“___ the red switch on the left and the flying machine will swiftly go up into the air and ____its journey.[ ]A. Pressing; begins B. Press; begin C. Pressed…”主要考查了你对  【动词】【祈使句】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。