В with С over 29 Could you turn the lights, please? It’s very dark in here. A on В in С down
27 Fashion models are quite popular … young girls. A among В around С for 30 I love this song! Can you turn the volume, please? A on В over С up
28 She impressed everybody … her acting skills. A about B with C for
I think she can change her hairstyle. Or make new hair color. Also, I suggest her to try use different clothing style. For example, she can start putting more bright, or more modest clothes on. Or buy clothes for different situations. For example, she can buy clothes for school, for a walk and etc. Also, she can try buying new cosmetics. She can wear different make up depending on situation. And at last, she can use jewelry.
As I said in the beginning, there are a lot of ways to change the appearance, but this are the basics.