— Could you meet me at the airport?— I'd like to,but I'm afraid I ______ a very important meeting when you return.
I wonder if your sister will go to Mary’s birthday party.If she_______,so ______ I.
The police were seeking more information to find out _______the rich merchant.
Not until he called the secretary three times ______ that the manager went to an important meeting.
In one corner of the garden there stands a little board,_______“Keep off the grass.”
—Are you still very busy? —Yes,I ______ the report for the manager and it won’t take long.