None of us expected Mr．Johnson to _____ at the party．We thought he was still abroad．
A．turn in B．turn on C．turn up D．turn over
Be careful when you surf the Internet．If you download a virus into your computer ______, you will not open your files．
A．on purpose B．by accident C．at random D．on average
The news that Shenzhou VII returned to the earth successfully _____ throughout the country．
A．stretched B．expanded C．extended D．spread
With so much noise of the traffic, I couldn’t ______ and do my research work．
A．put down B．settle down C．break down D．take down
On this important feast day, people eat food in the ______ of skulls and cakes with “bones” on them．
A．form B．shape C．way D．light
While in university, we were offered a number of afterschool activities to _____ our social skills．
A．create B．grow C．develop D．settle
