1 . ---How o________ do you go to the library?
---At least once a week. (根据首字母单词拼写)
---At least once a week. (根据首字母单词拼写)
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2 . S_______ does he turn to me for help, if ever.
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3 . CGI is a technology ______ (经常) used in making such effects. (根据汉语提示单词拼写)
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