their are so many different species of dogs .
^That is the incorrect usage of "their". "Their" is used when showing ownershp.
They turned the key and, for the first time, crossed the threshold of their new home.
There are so many different species of dogs.
They're excited for the upcoming road trip.
make five sentences with word you
That depends on the structure of the sentence and what it's about and how you set it out.
Yes. You can make sentences such as: "Whenever you wish." "Whenever someone lies to me I get angry."
the military of the USA went to Iraq armed with knives and guns.
using 'personage' in sentences
Sentences can be constructed by using that word as an adjective or as a verb.
Coinxkuhgfdjyg
The earth was born eons ago
she is savings her book for poor
make five sentences with word you
make sentences using personal pronouns
These transient tourists left rather quickly.
The catering was fabulous! A unicorn is a fabulous beast.
Sail me that Frisbee, would you? Do you sail? You sail!
Be careful where you step.
If you will accompany me to this doctor's visit, I will not be so nervous.
I need to paint my house. My house is a mess.