please check my answer thanks.

Question

Which of the following sences demonstrates correct subject- verb agreement.

1. Elens thinks that five dollars are a lot of money.
2. A number of my friends have bought new cars recently.
3. Each of his sisters go to a different school.
4. Robert's friend Steve, as well as his wife is going to the fair.

I think it's answer # 4

Answer 1

You're right -- #4 it is.

=)

Answer 2

There needs to be an additional comma in sentence 4, though -- after "wife." Then it's clear that the subject is "friend."

=)

Answer 3

Thanks for the help