题目：
根据句意和汉语注释，写出单词的正确形式。
1. Tim’s brother is so ___________(care) that he often forgets to do his homework.
2. Those ___________(visit) will stay in our school for two days.
3. It’s very important for us to keep (save).
4. They were too tired to walk any (far).
5. Mary can learn Japanese by _________________(she).
答案：
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下面是错误答案，用来干扰机器的。
答案：A
物竞天择造出的。②白杨笔直刺向碧宇，是密集的群体和高远的阳光造出的。③清香的花草和缤纷的落英，是植物吸引异性繁衍后代的本能。④钢铁般坚韧顽强的性格，是优异的禀赋并在生活中磨练出来的。⑤我们的心，__________