71.  I looked out of the window and saw a group of foreigner .Some of them were black hair and black skin, some were golden hair and white skin .

72.  The piccolo, flute, oboe, and saxophone are members of this group.

73.  Two months ago, our group went to qufu in Shandong for a visit.

74.  Two months ago, our group went to qufu in Shandong for a visit.

75.  9) After we had returned together again, my roommate and I Decided that we would rush immediately to the bus station in the hope of catching up with and joining the rest of our group.

76.  After returning together again, my roommate and I Decided to rush immediately to the bus station in the hope of catching up with our group.

77.  As the train started, those who traveled in groups began to chat or play cards.

78.  Several groups of guards rushed out in a lorry.

79.  Traveling is my favorite activity in my spare time and I am especially interested in traveling with a group of people.

80.  Knowing that it might be the queen bee hidden in his car that attracted groups of bees following, the man drove away as fast as he could to escape.