Question

The chairman’s past work I believe is quite noteworthy.
Parents were once legally required to bestow the father’s surname on their children but these laws have been contested in court and found invalid.
We tried to help them with their homework and explain how to study for the test.
After the new library opened the old one became a student union.
Morrison a native of Ohio won the Nobel Prize in 1993.
Since you passed the test I am happy.
The chairman’s past work I believe is quite noteworthy.

Instead they bestow the mother’s name for they believe the mother’s importance should be recognized.

Answer 1

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Answer 2

The chairman’s past work I believe is quite noteworthy.
Parents were once legally required to bestow the father’s surname on their children but these laws have been contested in court and found invalid.
We tried to help them with their homework ,and explain how to study for the test.
After the new library opened, the old one became a student union.
Morrison, a native of Ohio, won the Nobel Prize in 1993.
Since you passed the test, I am happy.
The chairman’s past work I believe is quite noteworthy.

Answer 3

http://grammar.ccc.commnet.edu/grammar/commas.htm

Study the different comma rules. You are missing MANY!

These are correct:
- After the new library opened, the old one became a student union.
- Morrison, a native of Ohio, won the Nobel Prize in 1993.
- Since you passed the test, I am happy.