今年两会召开之前，27家网络媒体开展“我向总理说句话”网民建言征集活动，共收到31.64万条留言，筛选整理出了1500多条优秀建言。这表明（   ）

①蚯蚓—体壁  ②蝗虫—气门 ③家鸽—肺和气囊 ④青蛙—肺和皮肤 ⑤家兔—肺

    Tom and Mike had a very good time last Sunday.That morning，they1at six o'clock and dressed(穿衣)themselves.2having breakfast，they went to the park.It's in the centre of the city. In the park.there were a lot of nice flowers.Mike wanted to 3one，but Tom stopped(阻止)him.He told Mike it was not.4to pick flowers.Then they went to the lake.By the lake,they saw a small5.They jumped into it and started a tour on the lake.Two hours6,they left the lake and walked up the hill(小山)near the lake.They got to the top at half past eleven.There they had their lunch.7did they have for lunch?Eggs，bread and oranges.In the afternoon,they 8home.When their mother asked them about the morning，9answered，"It was great.We10ourselves(我们自己)all the morning."