what do you think about these prepositions?

[Miss Ahdinos]

I hope that my nistakes decrease. So, please help me with a correction.
1-You must apologize (for) you rudeness (with) him.
2-But we really didn't know what the joke was (about).
3-Don't point (to) me in that disrespectful way.
4-This table is made (from) oak.
5-When he came (to) the square,he saw a great crowd.
6-He sang (to) us with a fine haritone.
7-Throw the ball (to) your sister.
8-Just listen (to) what hi is saying (to) Jack.
9-You must get up (at) 8 o'clock.
10-You can get there (by) bus or (by) subway,or, of course, (on) foot.
11-My room is (at) the end (of) the corridor.
12-This cheese is made (from) mountains.
13-It is rude (to) laugh (at) people.
14-Please bring it (to) my house.
15-(At) the concert she sang (for) a large audience.
16-There birds live mainly (in) caterpillaards and insects.
17-He had a bandage (in) his wrist.
18-I prefer writing (with) a pen than writing (with) a pencil.
19-(At) first we thought the stranger was a spy.
20-The lecturer returned (to) the point he had arrived (in) the previous day.
21-What is written (with) ink is clearer than what is written (with) pencil.