If your child needs to learn most of the alphabet letter sounds, help her create her own Alphabet Book. Staple some pieces of paper together and ask your child to draw pictures of items that begin with the sound of each alphabet letter. You can also teach alphabet letters and letter sounds by using an Alphabet Chart with pictures. I have an alphabet chart tacked on the wall at kid-height of my son's bedroom so he can look at it. For example, letter s should sound like a snake hissing, with no throat sound.
Children have different learning rates.
Your child may need lots of direct instruction to learn the alphabet sounds.