问题描述：
根据单词所给的首字母填写,完成句子.
1.It's raining outside.Take an u_____with you.
2.Before you post the letter,put a s_____on the envelope.
3.There are many f_____and trees in the park.It's very beautiful.
4.Do more e_____and you will get stronger.
5.Tomorrow is the 24th of December .Let's buy a C_____tree.
1.It's raining outside.Take an u_____with you.
2.Before you post the letter,put a s_____on the envelope.
3.There are many f_____and trees in the park.It's very beautiful.
4.Do more e_____and you will get stronger.
5.Tomorrow is the 24th of December .Let's buy a C_____tree.
问题解答：
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