【1】
1.① 2.① 3.① 4.③ 5.④
【2】
1. find that kind of price
2. Anyone can make a mistake
3. crazy to do such a thing
4. Which position of these
5. You must do it
そうですね。動詞がisなのでWhich positions ではおかしいですね。ご指摘ありがとうございました。
You're welcome.
You seem to be doing a great job to help students learn English.
Thank you for your comments. I am still studying English, so I will try to improve myself.
No problem.
Me too.
We all make mistakes, don't we?
The important thing is to learn from our errors, which will lead us to make ourselves better.
【2】
4.[ Which of these positions] is part-time? だと思います。