22.Ladies and gentlemen.please fasten your seat belts.The plane . A.takes off B.is taking off C.has taken off D.took off 查看更多

 

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

A.takes off                    B.took off

C.is taking off                D.has taken off

 

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

A.takes off              B.is taking off          C.has taken off          D.took off

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

A.takes off          B.is taking off           C.has taken off        D.took off

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

A.takes offB.took off
C.is taking off D.has taken off

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