----Why didn’t you tell me about the meeting? ----I ______ tell you the day before yesterday. You just forget it.

The wireless video camera is ________to send its video signal to a nearby base station，allowing it to be viewed on a computer or a television．

I really ought to go on a diet。I ________ on so much weight since I gave up jogging. 

You will have to wait for one more week, when the manager _____ back from his trip.

—Excuse me, Madam．Taking photos is forbidden here out of security．—I’m really sorry, I _______ of that．