She looked after him yesterday. ✔​

Please look after not to fire. ✔​

B. Make these sentences into English.

"사실은보아야."

Actually, It's Boa. ✔​

너 그거 어디서 구했니?

Where did you look at it? —> Where did you get it?

=> This sentence is okay. This is another way of saying it. ​

"내가 콘서트에 가서찍어온 거야."

I went to the concert and I took it. ✔​