The urge to go abroad for further study is strong, but it was not until last summer ________ I knew how powerful it could be.
A．who B．that
C．where D．before
Only when I put myself in their position ________ they were more miserable than me.
A．I had known B．had I known
C．I knew D．did I know
China added 50.9 million Internet users in 2012，________ the total to 564 million at the end of last year.
A．brought B．bringing
C．having brought D．to bring
French Foreign Minister Laurent Fabius on Monday ________ international support for his operation to help Mali quash Islamist rebels.
A．called up B．called for
C．called out D．called in
A nursing home in Tianjin has opened offering ________ the owners are describing as facilities as good as a fivestar hotel.
A．which B．how
C．what D．that
Don't spend time beating on a wall, ________ to change it into a door.
A．hope B．hoping
C．hoped D．to hope
