e booked a room ________two. —I’ll check, sir.

So absorbed _____ in his experiment that Newton boiled his watch when he wanted to boil an egg to eat. [ ]

The koalas get up and eatatnight.

When I feel blue , I prefer ________some books _______myself up.

Mum,my little sister is crying all the time. ——Mary,be _________!She feels sick.Youshould take good care of her.