間違っていたら教えてください

質問

（　）のなかに単語を埋める問題です。
やったので、どこが違っているか教えてください。
So many children wanna take this violin class that we have to have a (perfectionist).

Taking Roberta's violin class is a wonderful (opportunity).

We know how much you can (benefit) from the violin.

You chould know , however, the violin is a difficult (instrument).

You have to bring in the permission (definitely) on Friday.

Dorothea is taking pictures of thsi class for a magazine (article) on music education.

"Can I pay you for the pictures?" "Oh, don't be (lottery)"

My husband was very (impressed) when I told him about you.

It is (silly) not cool to waste your talent.

Roberta turned Rachel into a (slips).

多分相当間違ってると思うので、
どこに入るのか指摘してください！！

回答No.1

LCB

各カッコに入る単語は、単語リストから選んでますよね？
おかしいなと思うところに×を入れてみますね。

So many children wanna take this violin class that we have to have a (×perfectionist).
※このクラスへの志願者はたくさんいるので、○○をしなくてはいけない、という意味の文章です。

Taking Roberta's violin class is a wonderful (○opportunity).

We know how much you can (○benefit) from the violin.

You chould know , however, the violin is a difficult (○instrument).

You have to bring in the permission (×definitely) on Friday.
※permissionを示す何かを持ってきてくださいということです。

Dorothea is taking pictures of thsi class for a magazine (article) on music education.

"Can I pay you for the pictures?" "Oh, don't be (×lottery)"
※決まり文句です。「そんなこと気にしなくていいのよ」みたいな意味の。

My husband was very (impressed) when I told him about you.

It is (×silly) not cool to waste your talent.
※be動詞とnotの間に単語を入れたいので、副詞が入ります。

Roberta turned Rachel into a (×slips ○perfectionist).
※まず、a があるので slip[s] はありえません。

いかがでしょうか？

補足

It is (definitely) not cool to waste your talent.
Oh, don't be (silly)"
You have to bring in the permission (slips) on Friday
So many children wanna take this violin class that we have to have a (lottery).

直してみたんですけどどうですか？？
添削していただきありがとうございます。