541.All visitors to this village ______ with kindness.
A.treat
B.are treated
C.are treating
D.had been treated
542.In the near future,more advances in the robot technology _____ by scientists.
A.are making
B.are made
C.will make
D.will be made
541.答案是B;考查动词的时态和语态。表示经常性或习惯性的动作，用一般现在时；且来访者与招待存在被动关系。
542.答案是D;考查动词的时态和语态。In the near future表明将来的时间，而More advances与make 存在着被动。
