the differences between "also" and "too"
when I was a beginner in learning English, my teacher told me that "too" is used at the end of a sentence, but "also" should be used in the middle of a sentence.
for example,
Jack is my friend, Wendy is my friend, too. Jack is also my friend.
This is right.
but if you say, Jack is my friend, Wendy is my friend also.
This is not right.
But recently, I found some foreigners friends used "also" at the end of the sentences.
who can tell me if this is right?

Question

the differences between "also" and "too"
when I was a beginner in learning English, my teacher told me that "too" is used at the end of a sentence, but "also" should be used in the middle of a sentence. 
for example, 
Jack is my friend, Wendy is my friend, too. Jack is also my friend.
This is right.
but if you say, Jack is my friend, Wendy is my friend also.
This is not right.
But recently, I found some foreigners friends used "also" at the end of the sentences.
who can tell me if this is right?

Answer

All of the following are grammatically correct:
"Jack is my friend. Wendy is also my friend."
"Jack is my friend. Wendy is my friend also."
"Jack is my friend. Wendy also is my friend."
The first one is the most natural. There's nothing wrong with putting "also" at the end of a sentence or clause.

In spoken conversation, people usually prefer to say "too" instead of "also" at the end of a sentence or clause. Using "also" at the end of a sentence or clause sounds a little academic or formal.

Answer

too is used at the end of the sentence.
also can be used in the middle and sometimes at the end.

Answer

also = in addition
too = same as

Answer

both ways are right, but you'll sound more natural if you use 'also' in the middle, and 'too' at the end. Additionally, 'Also' can be used at the front of a sentence but never 'too'!

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