他看着烟雾从他的香烟上袅袅升起Jeff walked with his head down and ------( knock ) into an old man ��ʲô���������knock���ܷ����ͷ��·��ײ����һ��������������knocked�����knocked���Ҵ����ʲôʱ����What kind ofʲôʱ����What kinds ofwhat kind of fruit do you like?��ϲ������ˮ��Pineapple. ���档what kinds of fruits do you like? ��ϲ���ļ���ˮ��?Orange, Banana and pineapple. ���ӡ��㽶�ͷ��档