People were waiting for the boy___.A.arriving B.arrived C.to arrive D.arrive
问题描述：
People were waiting for the boy___.A.arriving B.arrived C.to arrive D.arrive
答
C人们在等待着这个男孩的到来
答
选C.to arrive不定式作boy的后置定语.表主动意义,时间上指的是将来