They will arrive our city April 20th. [ ]

Excuse me. Could you tell me to Xi’an Expo?–Take No.231 to get there.

Alice, is this your brother’s dictionary?— Let me see. Oh, no. ______ is in his school bag.

Why didn’t you go to the movie last night?_ Because I _____ the film before..

There is much chance ________Bill will recover from his injury in time for the race.