翻译下列句子。我们必须按时到校。你能把你的电子游戏带到学校来吗？周末迈克经常在外面吃饭。星期天你不必早起。不要在走廊里乱跑。
We are supposed to （鼓励）the young to read more books．
Keeping an English diary can help us improve our writing （能力）．
This is the （第八） year for Jim Green to stay in China．
The plane flew at a （高度） of three thousand meters．
It's necessary for us to （等待） in line in public．
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