Throughout_______history,Englishlanguagehasgonethroughmanychanges.
Before you leave the classroom ，please __the lights.
句子翻译：这些句子必须都记在笔记本上吗?
MrHuang____toKunming.He’llcomebackintwoweeks.
_______(不幸地),theyhadnomoneyfortheirmother'smedicaltreatment.
—Which do you like ______, tea or coffee?
—A cup of tea, please.
