Thank you very much for encouraging me to go on with my work!

Here are some more sentences I'd like you to check.
Can I start my exercise with:
Fill in the blanks with an appropriate preposition. Complete the sentences using an appropriate preposition.

1) He is a trainer now and brings.... (on) new athletes.
2) She brought up six children by herself.
3) They will bring up a new subject at our next meeting.
4) That child is bringing up food.
5) He can’t get his message across to his audience
6) How many people turned out at your party?
7) She turned out to be an excellent actress.
8) He turned out light and went to bed.
9) She forgot to turn out the gas in the kitchen, and she burnt her dinner.
10) She took her handbag and turned its contents out on the table
11) They have been turned out of the house they live in.

One sentence I sent you before was incomplete. Can you please check it please?
12) Just because you have the same taste in music as someon else, doesn't necessarily mean that you get on. (rephrase:have a friendly relationship with each other ??)

1. Yes -- or "brings in"

2, 3 -- yes

4. Do you mean bring it up as a topic of discussion or literally bringing it up (as in vomiting!)?

5, 6, 7, 8 -- yes

9. I'd say "turn off the gas"

10, 11 -- yes

12. I'd say "get along" although "get on" is not incorrect.

Sure, here are the explanations for the sentences you provided:

1) He is a trainer now and brings on new athletes.
Explanation: To fill in the blank, use the preposition "on". You can determine this by understanding the context of "bringing on" new athletes, which implies that he is introducing or recruiting new athletes to his team or group.

2) She brought up six children by herself.
Explanation: The sentence is already complete, and the preposition "up" is correctly used. "Bring up" typically means to raise or care for someone, in this case, six children.

3) They will bring up a new subject at our next meeting.
Explanation: The sentence is complete, and the preposition "up" here is used correctly. "Bring up" in this context means to introduce or discuss a new subject during the meeting.

4) That child is bringing up food.
Explanation: The sentence is complete, and "bringing up" is used correctly to imply that the child is vomiting or regurgitating food.

5) He can't get his message across to his audience.
Explanation: The sentence is complete, and "get across" is used correctly. "Get across" means to successfully communicate or make oneself understood by someone.

6) How many people turned out at your party?
Explanation: The sentence is complete, and "turned out" is used correctly. "Turned out" in this context means how many people attended or showed up at the party.

7) She turned out to be an excellent actress.
Explanation: The sentence is complete, and "turned out" is used correctly. Here, "turned out" means she revealed or demonstrated her skills as an excellent actress.

8) He turned out light and went to bed.
Explanation: The sentence seems to be incomplete or may have a typo. If you mean "He turned out the light and went to bed," then it would make more sense. "Turned out" here means he switched off or extinguished the light.

9) She forgot to turn out the gas in the kitchen, and she burnt her dinner.
Explanation: The sentence is complete, and "turn out" is used incorrectly. The correct phrase would be "turn off" instead of "turn out". "Turn off" means to stop the flow or supply of something, in this case, the gas.

10) She took her handbag and turned its contents out on the table.
Explanation: The sentence is complete, and "turned out" is used correctly. "Turned out" means she emptied or revealed the contents of her handbag onto the table.

11) They have been turned out of the house they live in.
Explanation: The sentence is complete, and "turned out" is used correctly. "Turned out" in this context means they were evicted or forced to leave the house they were residing in.

12) Just because you have the same taste in music as someone else doesn't necessarily mean that you get on.
Explanation: The sentence is already complete. However, to rephrase it as "have a friendly relationship with each other," you can say:
"Just because you have the same taste in music as someone else doesn't necessarily mean that you get along."