11）Quite often we have to play host to them though it's their home ground.

　　12）Nothing's been decided yet. Why going there in such a hurry？

　　13）The company is sometimes very cheap on the travel expenses.

　　14）I like to take an accasional business trip for a change.

　　15）On this trip I have to visit several important customers.

　　16）We always discuss business matters. It's boring.

　　17）Every time I'm back， I have to write a detailed report of the business trip.

　　18）Sometimes you arrive there around two or three o'clock in the morning.

　　19）Business trip is tiring to me.

　　20）She always gets some presents for other people in the office when she's back from a business trip.