AnA4sizedpanel(太陽能板)putontothebackofajacketcosts__________US$15.Itcould__________acellphoneduringasummerwalk.
Shewouldratherhavearoom__________thansleepwithhersister.
Forsomereason,it__________alldayoverthetwoweeks.
Wearelivinga_____
Willyou_________playingbasketball?
Onewaytounderstandthousandsofnewwordsistogain__________goodknowledgeofbasicwordformation.