The complementary DNA sequence for CTG GAA CTA is GAC CTT GAT. This is explained by the default base pairing of adenine (A) to thymine (T) and guanine (G) to cytosine (C) in double stranded DNA. This base paring is significant in DNA replication as well as in transcription of DNA but with the thymine (T) replaced by uracil (U) in RNA.
