— I’m sorry I can’t go to your party tonight.— ____________? Haven’t we agreed on it?
Are you paying now, or shall I ______ to you?
Please drop _______ my home when you are free.
____to my regret, I am unable to accept your warm invitation.
We often say that something is “as light as air”, but air is___light.
The boy was______eager to get a geography book.