Answer:
2 half notes fit into a 4/4 time signature.
Step-by-step explanation:
If a quarter note is worth one beat, 4 quarter notes can fit into a measure in 4/4 time. If a half note is two beats that means two half notes can fit into a measure in 4/4 time. If a whole note is worth 4 beats that means that 1 whole note can fit into a measure in 4/4 time.