Many people are fond of showing off. 有很多人喜欢炫耀. Some people are good at singing,and some are good at dancing. 有些人擅长唱歌,而有些人擅长跳舞. Some people are afraid of watching horror movies. 有些人害怕看恐怖电影. Turn off the lights before leaving the house. 离开屋子前要把灯关掉. Instead of trying to show off,they should be themselves. 他们不应炫耀,而应做真正的自我. Instead of waiting for his friends,he left by himself. 他没等他的朋友.反而自己离开了. Rather than wait for his friends,he left by himself 他没等他的朋友,反而自己离开了.