To succeed in a scientific research project ________.
A、oneneedstobepersistentA
暂无解析
________ (catch) in the rain, he was wet to the skin.
Night________(fall),wehurriedhome.
Iwonderifhecouldgetit________(do)beforetomorrow.
Agreatnumberofsmallpowerstations________(setup)intheircounty sinceliberation.
Ihavebeenstudyinghereforfouryears,bynextsummerI________.
