4.The great hall was crowded with many people, _____ many children _____on their
 parents’ laps.
A.including; seated B.including; seating
C.included; sat D.included; sitting
【答案】A
 
【解析】考查介词和过去分词。句意：这个大厅挤满了人，包括一些坐在父母腿上的小孩。include是介词,由其领导的这个句子是做状语成分之用.including somebody，包括某人=somebody included，seated是动词+ed,其引导的"seated on their parents' laps"是后置定语的成分,表示状态，用来修饰前面的"children"。故选A。