What should i wear to church?

Wear something sedate, like a dress with long sleeves, hose, and dressy shoes. If you wear pants, make it a nice pair of dress slacks (not jeans) and a sweater or nice long sleeved shirt. Don't wear too much makeup, and see that your hair is combed nicely and pulled back if it's long. Don't overdo the perfume or jewelry. If you're in a place that has very cold weather, you can wear solid leggings (like Duchess Catherine does) instead of sheer hose. Dress boots are acceptable, but not slouchy ones. If you have a nice long coat, wear it instead of a ski jacket. In other words, look as prim and proper as you can. If you're not accustomed to church, just follow the service the best you can, bowing your head during prayers, standing and sitting when you're asked to do so, and listening attentively. You'll do fine. Good luck!

Something a little conservative would be ideal. No cleavage showing, not tight hugging and a little bit below the knee.And not a striking color.

A long skirt and a pretty blouse or a dress is fine.

As long as it covers your knees and no bra straps or cleavage are showing.

Tights and a dress or black pants and a top