— When will you come to Daqing?— I will call you _____I arrive.
Don’t worry, Sir. I’m sure I can run _________ to catch up with them.
---- I watched the TV program last night. ---- _________.
----_________ a year does your school have sports meetings? ---- Twice a year.
About _________ people are in the People’s Park at the weekends.
Yesterday, I saw _________ enjoy _________ in the park.