问题描述：
选择一个英语单词
Sam said to me ,"Don't give up the hope before you really try hard.==>Sam told me not to give up the hope before I really ( ) hard.
希望有解析A try B tried C Trying D not to try
Sam said to me ,"Don't give up the hope before you really try hard.==>Sam told me not to give up the hope before I really ( ) hard.
希望有解析A try B tried C Trying D not to try
问题解答：
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