What clauses; long noun phrase subjects

__________ is a positive attitude.

• What I'm

• The best thing to do

• What you need

__________ a letter to her boss.

• What she did was write

• What she did was wrote

• Something did write

__________ is to try to get a really good degree.

• What it should do

• What to do

• The first thing to do

__________ is to get another job offer and then ask for a promotion.

• I would do

• What you need to do

• What needs to do

__________ is determined to succeed.

• The main thing you need to be

• The main thing to be

• Something must be done

__________ is that companies are hiring new graduates right now.

• The good news is

• What good news

• The good news that are

The company says __________ is wear formal business clothes

• what should do

• what you should do

• something to do

__________ is (that) they help you get better jobs.

• Internships

• What internships

• The best thing about internships