— Why, David, you look so tired!— Well, I ________an article and I must finish it tomorrow.
— Did you return the book to me? Why can’t I find it anywhere? — ________. You were writing a letter at your desk at that time.
The old worker _______ a very practical plan at the meeting yesterday, but it was turned down by the manager.
— Were you caught in the heavy rain this morning? — Yes, I was. _______ had I left home than it began to rain dogs and cats.
As citizens of our country, it is our duty and responsibility to _______ the legal rights of our own in the election.
________, he knows a lot of things.