위에 영작 맞게하신거 같은데요??!! ^^

제가 헷갈리는게 that they eat 이 아니라 that they ate 라고 쓰는게 맞나요 ?

There's nothing I can do about it because it's a science experiment.
가 되겠네요~ ^-^

I was afraid he did not remember me.

I was afraid that he don't remember me.

I was worried(or afraid) that he won't remember me. (주어가 He니까 don't가 아니라 doesn't, wasn't가 아니라 won't로 해야해요^0^)

I'm afraid about he don't remember about me.

I was afraid that he doesn't remember me.

If there's something wrong, please make a correction.

Please make a correction when you see something wrong.

If something is wrong, give a correction.

If there is something wrong, it is good to correct them.

Correct me if there is anything wrong.

I looked at the ceiling I think the best is good posture.

I think the sleeping posture of looking at the ceiling is the best.

I think sleeping while looking at the ceiling is the best.

As far as I am concerned, a sleeping posture like looking at the ceiling is highly recommended.