EF56 run-on sentences and comma splices

Sentence types:
SIMPLE
COMPOUND
, SOBA    ;however,      ; therefore,

COMPLEX

Two common errors for COMPOUND SENTENCES

run-on sentence RO

comma splice CS

MODELS
I like coffee. She likes tea. SIMPLE
I like coffee, and she likes tea. COMPOUND
I like coffee; she likes tea.
I like coffee; however, she likes tea.

ERROR
I like coffee she likes tea. run-on sentence RO
There is nothing in between the sentences
Lots of ways to fix it. See the example above.

ERROR
I like coffee, she likes tea. comma splice CS
A comma is not strong enough to join two sentences. We need something stronger, such as ; or ,SOBA.

C-25
5. Some one needs to fix the refrigerator it is not working properly. RO
Some one needs to fix the refrigerator; it is not working properly. COMPOUND
Some one needs to fix the refrigerator because it is not working properly. COMPLEX
Some one needs to fix the refrigerator. It is not working properly. SIMPLES
Some one needs to fix the refrigerator; therefore, it is not working properly. MEANING IS OFF, LOGIC

The refrigerator is not working properly; therefore, someone needs to fix it.

6. Hundreds of people lost their jobs a large factory downtown went bankrupt. RO run-on
Hundreds of people lost their jobs because a large factory downtown went bankrupt. COMPLEX
Hundreds of people lost their jobs when a large factory downtown went bankrupt. COMPLEX

A large factory downtown went bankrupt, so hundreds of people lost their jobs. COMPOUND
A large factory downtown went bankrupt; therefore, hundreds of people lost their jobs. COMPOUND   ; therefore,

7. In a blaze of colour the sun slowly set behind the hills a slight breeze cooled the air. RO
In a blaze of colour, the sun slowly set behind the hills; meanwhile, a slight breeze cooled the air.
meanwhile - at the same time COMPOUND
In a blaze of colour, the sun slowly set behind the hills as/while a slight breeze cooled the air. COMPLEX
as = while

9. There were enough chairs for twelve people; unfortunately, the rest had to sit on the floor. COMPOUND
There were enough chairs for twelve people, but the rest had to sit on the floor. 
There were enough chairs for twelve people, so the rest had to sit on the floor. 

13. She can't come to the phone right now she is busy please call back later.
She can't come to the phone right now because she is busy, so please call back later.
She can't come to the phone right now because she is busy, so please call back later.
Long, but OK.
She can't come to the phone right now because she is busy. Please call back later.