Which of the following is wrong?

1. A.
   They didn't find the secret until they got home.
2. B.
   Not until they got home did they find the secret.
3. C.
   It was not until they got home that they found the secret.
4. D.
   Not until did they get home that they found the secret.

 Which of the following is WRONG?

    A．They didn’t find the secret until they got there.

    B．Not until they got there did they find the secret.

    C．It was not until they got there that they found the secret.

    D．Not until did they got there that they found the secret.

Which of the following is WRONG?