①休祲降于天(古:____;今:____)
②虽然,受地于先王(古:____;今:____)
③岂直五百里哉(古:____;今:____)
④徒以有先生也(古:____;今:____)
Where is your sister? She _____in the study.( )
They walked home last night because they couldn't to take a taxi.