It was in Beihai Park _____ they made a date for the first time ______ the old couple told us their love story.

The teacher highly recommended that I___________ more to improve my English.

I’m leaving for Beijing next week.– How long ______ there?

ook tells ____ life story of John Smith, wholeft ____ school and worked for a newspaper at the age of 16.

23．What the boss really doubts is__________his employees will go on working in the company