题目

吸入“笑气”会使人发笑。该气体是由氮氧两种元素组成的化合物，氮、氧元素的质量比为7：4，它的化学式是         答案：N2O解析:略 61. Thousands of v________ come to our city for sightseeing every year. 62. If you want to keep fit, you need to eat h________ and take more exercise. 63. August is the e________ month of the year. 64. The little girl looked very w________ because she lost her way. 65. I got up late this morning, so I left home w________ having breakfast. 66. The dog floating(漂流) on the sea was found and carried to ________ (安全) in the end after the earthquake. 67. Mother always says you can’t ________(相信) all that people say online. 68. Have you got the ________(最新的) news about the drinking and driving in Beijing? 69. Japanese people are ________(教) how to prepare for earthquakes from an early age. 70. Since last year, the 9 Square Diary has become ________(流行的)online, especially among young people.