In a shop ___ customers.
Hotels fill up fast during the busy tourist season, __________it is necessary for tourists to make reservations in advance.
An advantage of being the youngest child in his family is __________he gets a lot of attention.
His study was a mess with lots of books and magazines __________up everywhere.
--Oh, I __________my passport! --Don’t worry. We have time to go back home and get it.
While looking for some personal documents, I happened to see an album __________some old photographs.