Those who are ______ their present situation will surely make no more advance in life.

--- Why didn’t Mr. Smith arrive on time for the meeting?--- He must have been ________ on his way here in the traffic jam. 

---Who called just now? ---I don’t know because I didn’t______ his voice.

The hotel is very comfortable, because it has successfully ______ the old and the new styles.   

You can take the rest of the pie with you. ___________, I wish you would, since I’m on a diet.