Ladies and gentlemen,please fasten your seat belts,the plane______.
A．takes offB．is taking offC．is going to take off D．is to take off
B
本題考查時態(tài)。題干所表示的是航班乘務員在通知乘客系好安全帶，其原因是“飛機馬上要起飛了”，“take off”要用進行時表示將來時。答案選B。A項也可用現(xiàn)在時表示將來時態(tài)，但必須接有時刻類的時間狀語，傳達的是車、船、飛機將按所安排好的時刻起程。
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