An A4 sized panel ( 太陽能板 ) put onto the back of a jacket costs __________ US$15. It could __________ a cellphone during a summer walk.
A、atmost;workD
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I want your_________, sir. I don t know what to do.
---Haveyoumovedintothenewhouse?---Notyet.Therooms__________.
Wherewas__________youmetwiththefamousscientist?
Our teachers made us ________a lot of homework after school.
ThisisthefirsttimethatI_________atthemeeting.
