We used to work in the same office and we____ often have coffee together, which I missed so much years later.

--- ______ you give your seat to this old man? --- Of course. 

________ he is a child, ______ he knows much about the computer.

—We are worried about Tom. Why hasn’t he come back?—Don’t worry. He ______ in a traffic jam.

 The chairman ________ hold office for five years according to the constitution.