Ladies and gentlemen, please fasten your seat belts. The plane ____________.

A. takes off B. is taking off

C. has taken off D. took off

B

【解析】

試題分析：考查時態(tài)的辨析。這道題目里飛機起飛時正在進行或者即將的動作，故應(yīng)該用現(xiàn)在進行時。本題意為：女士們，先生們，飛機即將起飛，請系好您的安全帶。故這道題應(yīng)該選B項。

考點：考查時態(tài)的辨析。

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