Answer:
1)”I’m a student” Tom said.
Tom said that he was a student.
2)”I’m living in London now” Charles said.
Charles said he was living in London then.
3)”You are my best friends” Jane said to us.
Jane told us we were her best friends.
4)”I don’t know what Fred is doing” Jonny said to me.
Jonny told me that he didn't know what Fred was doing.
Answer:
Written English is usually more formal and grammatical, and spoken English is usually casual and employs things like slang
Explanation:
I've been speaking English for life.
When combining two independent clauses, a comma must be placed before the conjunction