—You’re coughing badly，Martin. Why not give up smoking?—Give up smoking？Easier said than done，Amy. Once you ______ the habit of smoking，it is very hard for you to ______.

His mother could do nothing but _______ for the doctor to arrive. 

Japan’s growing sales of technology ________ a major development in this area, and we can also see its progress in other aspects.

When they went to the theatre, the play ______ for five minutes.

The inspector ____ his fingers over the sheet of newspaper. There were some marks on the surface of the paper.