We don’t know his telephone number; ifwe ____, we_____ him now. [ ]

Are we going sightseeing next week? —NoThe planat the second meeting

Would you kindly tell me _______?[ ]

The coal boss took the risk of making money ________ the safety of his workers.[ ]

ou look so young. Haven’t you graduated from your university— Yes, I _______ in the English Department of Zhejiang Normal University for four years.