1.anyone 的意思是“任何人”,后面不可接 of 短语；any one 的意思是“任何一个人”或“任何一个事物”，后面可接 of 短语。所以，1. I don’t think anyone of these plants will be suitable in a small garden.应该改为：1. I don’t think any one of these plants will be suitable in a small garden.

    2. the murdur 不能作do的宾语。如果表示“实施谋杀”、“犯谋杀罪”，可以用commit （或 perpetrate 或 carry out ）the murder ，所以，It was impossible to guess who had done the murdur. At last it turned out to be the cook.句中的 had done the murder 应改为 had committed the murder 或 had carried out the murder或 had perpetrated the murder。