Since he has just had a major operation, he knows that a trip to Europe this summer is __________.
Please don’t phone him between 1 and 3 p.m. tomorrow. He _____ a lecture then.
If you are not satisfied with the price _______, we can still discuss it.
Drunk driving used to occur _______, but now it is under control.
Cooking calls for patience and time but it is enjoyable experience.
Was it because he was ill ____ he asked for leave?