Ladies and gentlemen，please fasten your seat belts．The plane       ．
A．takes offB．took off
C．is taking off D．has taken off
C
考查將來時態(tài)。用現(xiàn)在進行時表示按照計劃將要發(fā)生的事情。一般現(xiàn)在時表示按照飛機場，車站時刻表的安排要發(fā)生的事情。故C正確。
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