Thenumberoftallbuildings__________greatlyinTianjininthelastfewyears.
AnA4sizedpanel(太阳能板)putontothebackofajacketcosts__________US$15.Itcould__________acellphoneduringasummerwalk.
---Haveyoumovedintothenewhouse?---Notyet.Therooms__________.
Ourteachersmadeus________alotofhomeworkafterschool.