Only in this way   __     to make improvement in your study.

在太空中，宇航员处于失重状态，以下实验不能做的是（　　）

用方框中所给单词的适当形式填空，使短文通顺、正确、连贯（每个单词限用一次）。                                  

get,  look,  some,  year,  a,  write,  by,  tomorrow,  work,  other

      Tommy is a schoolboy. He's thirteen ____  old. He's in Class 3, Grade 1. He always____  up early and he often goes to school ____ bike. He likes English, Chinese and some ____ subjects. He enjoys singing and dancing. But now he is having ____ English class.____ ! some of the students are reading books and some of the students are____  the new words. They are ____  hard . But ____  is Saturday. They don't have ____ classes. He and his friends will go to the movies. I think they'll have fun.

一个圆柱的高扩大2倍，底面积缩小2倍，它的体积不变。

根据以下材料，选取角度，自拟题目，写一篇不少于800字的文章，文体不限，诗歌除外。

删除我经历过的任何一个瞬间，我都不能成为今天的自己。