Fill in the gaps

1. ... doctors are good phychologists and can help our kid.
2. ... of them can do the work better than Sam. He is the best.
3. Would you like tea or coffee? - ... . I have already had lunch.
4. The girl is afraid of ... nightmare and darkness.
5. I don’t believe them. ... of them are telling a lie. 6. I can see ... of them. They haven’t come yet.