急,用下列词汇的正确形式填空,每词限用一次.（a lot,end up,get excited about,at all

急,用下列词汇的正确形式填空,每词限用一次.（a lot,end up,get excited about,at all,have fun)
1.We_____riding our bicycles to the beach yesterday.
2.If you go on doing that kind of thing,you'll___in hospital.3.He thought that the teacher knew ____about history.4.I _____the news when I heard it on the radio.
5.There was nothing to worry about ____