用所给词的适当形式填
①There are two big ____ (library) in our city.
②There ____ (be not) a TV in his bedroom.
③There are some books on ____ (everyone) desk?
④They live (居住) in a tall ____ (build).
⑤In the classroom, Li Ming is on ____ (I) right.
我们班的同学在操场上游戏时摔伤了，腿擦破了皮。我们应该送他到____。
党的十八届中央纪委七次全会强调，管党治党不仅关系党的前途命运，而且关系国家和民族的前途命运，必须以更大的决心、更大的气力、更大的勇气抓紧抓好。这体现了***（ ）
①遵守党纪国法，扩大党的执政根基
②坚持从严治党，保持先进性和纯洁性
③加强作风建设，巩固党的执政地位
④健全民主集中制，大力发展党内民主
nervous visited by clouds went sky had saw
Dear Simon,
How are you? Last week I ____ to Xi'an. It's in the northwest of China. I went there ____ plane. The plane took us to the ____. First, I was a little ____. Then I looked out of the window.
The plane was above the ____. I ____ some mountains below. I ____ lunch on the plane. Later I arrived in Xi'an. I ____ many interesting places. The trip was great!
Love,
Daming
我市2014年固定资产投资约为220 000 000 000元，将220 000 000 000用科学记数法表示为____ .
已知正实数x，y满足lnx+lny=0，且k（x+2y）≤x2+4y2恒成立，则k的最大值是____
