Mr. Black________ Shanghai in a few days. Do you know when the earliest plane ________on Sunday?

A.leaves for;takes off

B.is leaving for;takes off  

C.is leaving for;is taking off

D.leaves for;is taking off

 

【答案】B
【解答】

B

【解析】答案 B [句意:布莱克先生几天后要去上海,你知道周日最早的飞机何时起飞吗?第一空用is leaving for,现在进行时在此表示将要发生的动作;第二空用takes off,一般现在时在此表示按计划、时刻表进行的动作。]