Are these sentences correct now?
As he stands in the backyard, and howls, my husband's will yell,"Shut up!"
Now he cannot get out;however, he still tries.
We brought many things to keep him in the fence: two chain, two heavy-duty hooks, and a new collar.
The first time he got out, we were so scared.
Statement:"He" refer to the husband.
Statemnent: why don't we need to use a common after now in this sentence.There is a pause after now.
Now,he is the smallest.
As he stands in the backyard, and howls, my husband's will yell,"Shut up!"
Partly corrected. Read the sentence aloud; before you worry about punctuation, make sure each and every word is correct.
Now he cannot get out;however, he still tries.
Looks good; just put a space after that semicolon, though.
We brought many things to keep him in the fence: two chain, two heavy-duty hooks, and a new collar.
Almost correct; read it aloud and concentrate on each and every word.
The first time he got out, we were so scared.
OK
Statement:"He" refer to the husband.
Statemnent: why don't we need to use a common after now in this sentence.There is a pause after now.
Now,he is the smallest.
You don't need the comma since it's a one-word introductory adverb AND the sentence is so short. It would be different if the sentence itself were longer. Examples:
Now, after all that food, he wanted to go for a long walk.
First, you'll need to find a good dictionary.
See #3 here: http://grammar.ccc.commnet.edu/grammar/commas.htm