Unit 3Online tours,.根据首字母及汉语提示补全单词 1.Quite a number of world-famous( 举世闻名的 ) paintings are on show in this exhibition. 2.I think we need a guide( 导游 ) to show us around the city.Its the first time we have been here. 3.Mark has been working in Africa( 非洲 ) for about six months. 4.There was a huge( 巨大的 ) stone on the road.All the traffic had to stop. 5.Can you see anything at the bottom( 底部 ) of this glass?,.根据句意用所给词的适当形式填空 1.I realized that we had to do something together and that was a light in