AnA4sizedpanel(太阳能板)putontothebackofajacketcosts__________US$15.Itcould__________acellphoneduringasummerwalk.
Shewouldratherhavearoom__________thansleepwithhersister.
Onewaytounderstandthousandsofnewwordsistogain__________goodknowledgeofbasicwordformation.
在防火墙技术中,我们所说的外网通常指的是()
Wherewas__________youmetwiththefamousscientist?