—Ann is in hospital.
—Oh，really？I ________ know.I ________ go and visit her.
A．didn't；am going to B．don't；would
C．don't；will D．didn't；will
I ________ in London for many years，but I've never regretted my final decision to move back to China.
A．lived B．was living
C．have lived D．had lived
In 1492，Columbus ________ on one of the Bahama islands，but he mistook it for an island off India.
A．lands B．landed
C．has landed D．had landed
Excuse me.I ________ I was blocking your way.
A．didn't realize B．don't realize
C．haven't realized D．wasn't realizing
When I got on the bus，I ________ I had left my wallet at home.(2011·山东)
A．was realizing B．realized
C．have realized D．would realize
The three of us ________ around Europe for about a month last summer.(2012·天津)
A．travelled B．have travelled
C．had travelled D．travel
