Hehas just returnedfromatripabroad.
Hejustcamebackfromabusinesstrip inAmericayesterday.
Howmanydayswillyou take a businesstriptoShanghaithistime?
I'll takeabusiness triptoShanghaiforabout fourdays.
Howmanydayswillyoutravell toShanghai?
I'lltravell toShanghaiforthreedays.