（） economically,one tin of oil will last at least three mont

（） economically,one tin of oil will last at least three mont ( ) economically, one tin of oil will last at least three mo ____ economically,one gallon of oil will last at least two m _______ with care, one tin will last for six weeks. ______ with care,one tin will last for six weeks. I will have a three-week vacation the beginning of next mont At last at least 造句 非谓语 ( ) with care,one tin.will.last for six w Of the two pens,the boy bought_expensive one at least. I think at least one of the students_____this song before. write at least 6 sentences about one of theinternational cit you must enter at least one of the followong:wmail