By

Conxunción subordinante

  observing

Verbo

  these

Determinador

  subjects

Substantivo

,  Johnson

Substantivo propio

  helped

Verbo

  Masters

Substantivo propio

  identify

Verbo

  the

Determinador

  four

Número

  stages

Substantivo

  of

Adposición

  sexual

👉👌

Adxectivo

  response

Substantivo

.

By observing these subjects, Johnson helped Masters identify the four stages of sexual response.

By observing these subjects, Johnson helped Masters identify the four stages of sexual response.