They haven't decided if they will go to Beijing

they haven't decided on whether they should go to beijing 为什 they haven't decided on it that go to beijing?这样对吗 They haven't decided where to go.是什么从句? they haven't decided where to go next?为什么不是they haven't deci [-They have decided not to go,haven't they?-Yes,they have de -I haven't decided if will go to the party tomorrow.-If you They haven't decided where to go.Where 作不定式逻辑上的状 They haven't decided where to go.Where 作不定式逻辑上的 they haven't decided to when they will start. 这句话是一个宾语从句,有错吗 (同义句转换,没空一词.)They haven't decided who to write to.They haven They haven't decided yet which hotel to stay at. they haven't decided yet .theyare ()yesterday