AnA4sizedpanel(太阳能板)putontothebackofajacketcosts__________US$15.Itcould__________acellphoneduringasummerwalk.
A、atmost;workJohnsaidhewouldpay__________secondvisittoChina__________nextmonth.
—Howareyoutoday?—Oh,I__________asillasIdonowforalongtime.
MrWhite________at8:30forthemeeting,buthedidn’tshowup.
__________twenty-fifthofDecemberis__________ChristmasDay.
Idon'tknow_________.