An A4 sized panel ( 太阳能板 ) 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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John said he would pay __________ second visit to China __________ next month.
The two main popular__________ of Easter are the Easter bunny and the Easter egg.
Thenumberoftallbuildings__________greatlyinTianjininthelastfewyears.
His whole school education ________ only 2 years because of his illness.
He came into the classroom_________.
