Hello, thank you for asking me for help!

The first thing to make clear is that it is not up to you to decide what melody to fill in the first line, but there is a fixed answer. This is a listening question, so first you have to pay attention to what notes and rhythms are played in the recording. First, dictate the music content in brackets in the first line of E minor music. The answer is as shown below (i.e. your second The listening content shown in the picture is presented).

Then to transpose from E minor to D minor, just lower all the notes in the melody by a major second. The second line of the music score in the question has already written the key signature of D minor (one flat, B flat) for you. This means that the question asks you to use the key signature of D minor to notate the score, so B flat appears in the melody. , you no longer need to write a flat on B (because B has already been flatted in the key signature). The answer is shown below.

If you have any questions, please ask me and I will answer your questions further!