Ifound________toanswerallthequestionswithinthetimegiven.
Itisusefultoscience_______theearthasanobjectinspace.
党的过渡时期总路线所指的过渡时期是_________。
heteachertoldthemsincelight________(travel)fasterthansound,lightning________(appear)togobeforethunder.
Theoppositionleaders________thegovernmentfornottakingactionsooner.
