sugar is important to all living things.And in a r____ research,scientists found that anything sweet could be used as a fuel by batteries.At a scientific meeting in Chicago,one of the researchers s_____ the new battery to the people at the meeting.It was asb_____as a postage stamp and could successfully run a calculator.
"The battery is better and much c_____ for the environment.”the researchers said in a speech."Besides,these sweet new batteries can operate three to four times longer than the general batteries thhat people u______ in mobile phones,MP3 players,iPods and many other The new battery is wonderful .Researchers said that the battery could be on s_____ in three to five years.
紧急！
recent showed big clean used sale第二个空，在芝加哥的科学研讨会上，一个研究者在会上给大家展示了新的电池。这里应该不填supply提供，showed比较恰当。第四个空，这个电池对环境应该用clean, 不能说much convenient for the environment.最后一个空，不能确定，但外贸函电里一般用on sale，它有减价出售的意思，也有上市，待售的意思。
