根据句意和汉语注释,在答题卡标有题号的横线上,写出单词的正确形式。
Our English teacher gave us many (建议) on the study of a foreign language.
He talked ___ (兴奋地)to the reporters about his hopes of winning the race.
You should knock at the door before (进入) someone’s house.
Are there any tickets ________ (可获得的)for this Saturday’s concert?