Ответ:
- The sun was beating down on the dry soil.
- Who is carrying out the research?
- She was vain about her looks, spending hours in the gym.
- This play is familiar to many theatre-goers.
- He demonstrated his familiarity with a lot of subjects.
Ответ: down, out, about, to, with
Замечательно! Ты правильно подобрал предлоги. Продолжай тренироваться, и у тебя все получится!