AnA4sizedpanel(太阳能板)putontothebackofajacketcosts__________US$15.Itcould__________acellphoneduringasummerwalk.
A、atmost;workYoulooknotabitolderthanyoudid5yearsago.Howdoyou__________soyoung?
America is an __________ country. You can hear __________ everywhere.
I don ’ t want to buy the sweater because I don ’ t like the color. __________, it is too expensive.
You should try to write __________ eve n when you ’ re busy. As you know, practice makes perfect.
You__________putyourcomputerinyourbedroom.
