________ his arrival, he began to make preparations for the speech of the conference.
You ______ be hungry already--- you had lunch only two hours ago!
I like getting up very early in summer. The morning air is good _______.
--- You’re quite free now, I think. ---_______. I have tons of things to do!
--- May I open the window to let in some fresh air? ---- ______.
— My daughter has been _______ to Harvard University. — Congratulations.