What clauses and long noun phrases exercise

Making a good impression is really important.

What _______________________________.

A friend of mine offered to help the manager.

Something __________________________.

My sister introduced herself to everyone.

What _______________________________

Smile -that’s the best thing you can do.

The ________________________________.

I would try to listen and learn from my co-workers.

What __________________________________.

I like to find out as much about the job as possible before starting.

What __________________________________.