In

Plug – fill – sign — come — let – look– stay — breathe
1. What time does his train … in?
2. Please … in this form.
3. I think I’d rather … in tonight.
4. All visitors must … in at the front desk.
5. They are … into the causes of the accident.
6. Then I realized I hadn’t … the TV in.
7. Could you go down and Mary in?
8. It hurts when I … in.