—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
On Sundays, there were lots of children in the park, ________parents sitting together joking.
David is such a good boy ________all the teachers like him.
A man with a bleeding hand hurried in and asked, "Is there a hospital around _______ I can get some medicine for my wounded hand?"
The silence of the library was sometimes broken by an occasional cough or by the sound of pages _______.
All her time _______ experiments, she has no time for films.