Thank you very much for __________ us so well.
--- Excuse me, may I come in? --- Not yet. Please wait on your chair _____ your name is called.
Neither the headmaster nor the teachers _____ take a vacation next week.
--- Could you please tell me _____? --- About twenty minutes ago.
The photo _____ taken by my brother last week is very nice.
We have to finish the work now, _____?