Most highways are lined with billboards of advertisement，which by passing cardrivers.
A. are intended to be read
B. are intended to be reading
C. are intending to reading
D. are intending to read
网友回答
(答案→)A. are intended to be read
B. are intended to be reading
C. are intending to reading
D. are intending to read
解析：考查词组：句意：大多数高速公路都排列着广告牌，这是准备给过路司机读的。be intended to do 为……准备(设计)的。再依据后面的by passing car-drivers 可知，此处应用被动语态，所以答案为A。