please kindly help me to correct the usage in english grammar.

1. Teacher: So what do you know __about___ prepositions?
From
At
In
About
2. Student: Well I know that they usually come _before___ nouns.
On
After
Under
Before
3. Teacher: Very good. Which do you find the __most___ difficult?
Better
Very
More
Most
4. Student: If I had to choose one, I would _pick____ "IN".
Turn
Touch
Pluck
Pick
5. Teacher: The thing to _only____ is that "IN" usually means inside a place or a position.
Know
Remind
Learn
Remember
6. Student: I see. But what's the difference _betwwen____ in and into?
From
From
About
Between
7. Teacher: Oh, you see "IN" means you are there inside _so____ "INTO" means you enter as: You go into the room.
How
When
So
However
8. Student: I also do not understand "TO" and "TOO" __because___ they are words sounding the same.
That
Although
Due to
Because
9. Teacher: Good question. "TO" is a preposition while "TOO" is an adverb. The latter often means extra: This exercise is TOO difficult. Oh! And don't forget the third word that also sounds the same - the _count____ "TWO".
Numeral
Roman Number
Count
Number
10. Student: Yes, I __already___ know the meaning of TWO. Thank you!
Shall
Can
Will
Already

5. no

7. no
9. no

The others are correct.
Check the spelling of "between," though.

1. The correct usage would be "What do you know about prepositions?" as "about" is the appropriate preposition to use when expressing knowledge or understanding.

2. The correct usage would be "they usually come before nouns" as "before" indicates the position of prepositions in relation to the nouns they modify.
3. The correct usage would be "Which do you find the most difficult?" as "most" is used to compare multiple items and identify the one that is the greatest in degree.
4. The correct usage would be "I would pick 'IN'" as "pick" is the appropriate verb to choose in this context.
5. The correct usage would be "The thing to remember is that 'IN' usually means inside a place or a position" as "remember" emphasizes the action of recalling or keeping something in mind.
6. The correct usage would be "What's the difference between in and into?" as "between" is used to express the relationship or distinction between two things.
7. The correct usage would be "IN" means you are there inside, so "INTO" means you enter the room" as "so" is used to provide an explanation or reason for something.
8. The correct usage would be "I also do not understand 'TO' and 'TOO' because they are words sounding the same" as "because" is used to indicate a cause or reason for something.
9. The correct usage would be "the count 'TWO'" as "count" refers to the act of determining or establishing the number of something.
10. The correct usage would be "Yes, I already know the meaning of TWO. Thank you!" as "already" indicates that the knowledge of the meaning of "TWO" exists before the current moment.