二、语法填空。

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。

The experience of the Cross Country was really unforgettable.Those days will be __11__ (keep) in my memory forever.

Cross Country is a running race (about 5，000 meters).Before the __12__，I got very nervous.When 100 __13__(run) lined up at the starting line，I should have taken a deep __14__(breathe) and prepared to race.However，bad thoughts ran through my head：I've never run such a long race before.What __15__ I am not feeling well?What if...

The starting gun shot me back into the real world.I started running.I kept __16__(tell) myself that I could do this.Then I heard my coach cheer for me.I tried my __17__.When I passed the finish line，I was too tired to stand.All I __18__(can) do was breathing.Later，I felt my leg get really sore，but I thought it wasn't a big deal.However，the sores later turned into pain.A doctor said I can no __19__ practice in the future.I feel so sad.

The race has ended，but I still miss it.Yet I also have learnt that we should __20__ push ourselves too hard.Sometimes it gives us the opposite results.

11.kept 12.race 13.runners 14.breath

15.if 16.telling 17.best 18.could

19.more/longer 20.never/not