Marco Polo travelled through Asia _____ the end of the 13th century.

A friend is a person who knows what you are saying ______ you are not talking.

Look at the timetable (时刻表)Hurry up! Flight 4026 _______ off at 18:20

Is that thesmall town you often talked about —Right, just the one____ youknow I used to work for years.

You’ve finally figured out the puzzle！— Yeah, in a complex way, _______