If you want to ________ a pleasant visit, find out as much as possible about the manners and customs of your host country.
I apologized for ____ to tell you when and where the meeting will be held in advance. ----That’s all right.
I really regret ___to you, but at that time, I had no choice but ____.
The doctor examined the patient carefully, only_____ she was not seriously ill.
----Have you anything ____? ----No, thank you.
We hope the building project ____ will be completed as soon as possible because a lot of citizen are complaining about the noises.