—Do you know our city at all? —Yes, quite well, this is the fourth time I _____ here.[ ]

We haven’t discussed yet____ we are going to place our new furniture[ ]

(2013荆州)Since 2000，Jingmen has become a new city．Everything________．

How long _______ at this job? —Since 1990

The doctor recommended that you ____________ swimafter eating a large meal