TheTVstation,in________tomassivepopulardemand,decidedtocontinuethesoapopera(肥皂剧).

WhenIcamethroughthecustomsattheairport,Ihadtopay________onaclockIhadbought.

It's more ________ to buy a season ticket if you travel every day.

I don't know how we can make ________ on the timetable for any more courses.

For the new country to survive, ________ for its people to enjoy prosperity, new economic policies will be required.