After 5 days of fantastic space trip ,the two astronauts walked out of the spaceship, ______.

With April 18’s railway speedup, highway and air transport will have competed with          service for passengers.

If you want to book tickets for a film in Qionghai, just call 62838009. It _______be simpler.

 With the advanced technology, our factory produces ________cars as we did last year.

Traveling is ______, but we often feel ________ when we are back from travels.