the red switch on the left and the flying machine will swiftly go up into the air and      its journey.
A．Press, beginsB．Press, beginC．Pressed, beginsD．To press, to begin
B

試題分析：考查固定句式。本題第一空是一個固定句式：祈使句+連詞+陳述句；該句型就等于條件句+主句；第二空的begin its journey是與go up into the air并列的結(jié)構(gòu)。句意：按左邊的那個紅色的按鈕，這個飛行器就會飛上天空開始了他的旅途。故B正確。
點(diǎn)評：固定句式：祈使句+連詞+陳述句；該句型就等于條件句+主句；該句式還可以轉(zhuǎn)換成：名詞短語+連詞+陳述句。
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