Answer: The Romanticism period saw a large number of women emerge as leading composers of literature, music, and art. This in part was because of the changing roles men and women played in the household, a changing work dynamic which accepted women into positions usually only allowed for men (Industrialization), and the recent Abolitionist movement spreading throughout America in the mid 19th century.
For example on number 1 the time signature is 4/4 , that means there has to be 4 beats in between each bar line. They have already put in a half note which is equal to 2 beats. You can either put another half note or two quarter notes.
Remember
Whole Note = 4 beats
Quarter Note = 1 beat
Half Note = 2 beats
Dotted Half Note = 3 beats