it was intended that newton ① should carry on running the family farm. however, on the farm he spent most of his time doing ② nothing but scientific experiments. his mother, ③noticed this, wisely resolved to send him to the college at cambridge. at cambridge he seems, however, to have had only ④ little interest in other subjects except science and mathematics. he ⑤ kept a diary, and we can thus get a fair idea of the course of his education at the college.

답은 3번. noticied를 noticing으로 고쳐야 하는 이유와 나머지 답들이 왜 맞는지 이해가 안가요 ㅠㅠ

janice looks closely at the model howard ross for a few minutes. at first howard sits rather stiffly, but then he ①starts to relax a bit. now, thinks janice, he ② looks more natural. janice looks at his face ③ until she understands its shape. she studies the way light plays on his skin, ④ made patterns of lights and shadows. she studies the colors of his hair, his eyes, and his skin. only then ⑤ does she turn to pick up a brush and dip it into the oil paints.
답이 4번 made를 making으로 고처야 한데요. 콤마 다음이인까 ing써야되서 그런가요?
이것도 나머지 답들이 왜 맞는지 이해가 안가요.