draw a line/far gone/farm out/feet on the ground/fill in/first thing fist

[vil]

Dear teachers,

Would you be kind enough to tell me whether I am right with my interpretation of the expressions in bold in the following sentences?

1. The law in this country draws a line between murder and manslaughter.

2. Can you draw the line between a lie and a fib?
draw a line 1. To think of as different.

3. He was so far gone by the time the doctor arrived, that nothing could be done to save his life.
far gone {adj. phr.} in a critical or extreme state.

4. Our teacher had too many test papers to read, so she farmed out half of them to a friend.
farm out{v.} 1. to have another person do (something) for you; send away to be done.

5. John has his feet on the ground; he knows he cannot learn everything at once.
feet on the ground{. phr.} an understanding of what can be done; sensible ideas

6. You should fill in all the blanks on a application for a job.
fill in {v.} 1. to write words needed in blanks; put in; fill.

7. The new boy didn't know the rules so Bob filled him in.
fill in (v) 2. {informal} to tell what you should know.

8. Study your lessons before you go out to play. First things first.
first thing first = other things must wait until the most important and necessary things are done.

Thank you for your efforts.

Regards,

V.

[Offroad]

I can see no error, except for a typo on sentence 6. ('an application' instead of 'a application')

I'd rephrase like this:

You should/shall/must fill in all the blanks on a job application form.

[I am not a teacher]

[bhaisahab]

Dear teachers,

Would you be kind enough to tell me whether I am right with my interpretation of the expressions in bold in the following sentences?

1. The law in this country draws a line between murder and manslaughter. I wouldn't use draw a line here. Makes a distinction is better.

2. Can you draw the line between a lie and a fib?
draw a line 1. To think of as different. I wouldn't use draw a line here. Tell the difference is better.

3. He was so far gone by the time the doctor arrived, that nothing could be done to save his life.
far gone {adj. phr.} in a critical or extreme state.

4. Our teacher had too many test papers to read, so she farmed out half of them to a friend.
farm out{v.} 1. to have another person do (something) for you; send away to be done.

5. John has his feet on the ground; he knows he cannot learn everything at once.
feet on the ground{. phr.} an understanding of what can be done; sensible ideas

6. You should fill in all the blanks on a application for a job.
fill in {v.} 1. to write words needed in blanks; put in; fill.

7. The new boy didn't know the rules so Bob filled him in.
fill in (v) 2. {informal} to tell what you should know.

8. Study your lessons before you go out to play. First things first.
first thing first = other things must wait until the most important and necessary things are done.

Thank you for your efforts.

Regards,

V.

The others are fine.