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
The top leaders of the two countries are holding talks in a friendly ________.
A.situation B.atmosphere C.state D.phenomenon