问题描述：
用ever,already,just,never,yet,before等词填空
1、-Have you ______ been to the space station?-NO,I have ______ been there
2、-Havedone your homework ______?-Yes,I have.I have ______ done it.
3、I havebeen in China for two years _____.
4、My brother has _______ seen an interesting place_______.
10、His parents have ________ gone to paris,so he is ai home alone.
1、-Have you ______ been to the space station?-NO,I have ______ been there
2、-Havedone your homework ______?-Yes,I have.I have ______ done it.
3、I havebeen in China for two years _____.
4、My brother has _______ seen an interesting place_______.
10、His parents have ________ gone to paris,so he is ai home alone.
问题解答：
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