How would you correct this sentences?

It should have been a day just like other days.A usual day

I have couple more sentences:

when we heard unusually dog barking. Can we better say when we heard unusual dog barking or unusual barking of a dog.

do we say the dog was barking crazy or like a crazy?

He was trying to explain us something or to us something?

car was empty of gas - Is there a better solution?

We spent the afternoon at the beach or on the beach?

It should have been a day just like any other day -- a usual day.

When we heard the unusual barking of a dog ...

The dog was barking like crazy.

He was trying to explain something to us.

The car's gas tank was empty.
or
The car is running on empty. <~~slang!

We spent the afternoon at the beach or on the beach? <~~Either of those will work. The former implies that you were in a beach town, but may or may not have been on the sand and in the water. The latter states that you were on the sand and in the water.

Than you :)

And what about this one:

On TV had said that it is going to rain

On TV, the weatherman said that it is going to rain.

To correct the sentences, you can make the following changes:

1. Capitalize the first letter of the sentence: "It should have been a day just like other days. A usual day."

2. Add a space after the period at the end of the first sentence: "It should have been a day just like other days. A usual day."

3. Combine the two sentences into one: "It should have been a day just like other days, a usual day."

So the corrected sentence would be: "It should have been a day just like other days, a usual day."