问题
选择题
Remember ________ the book to the library when you finish _______ it. [ ]
A. to return; to read
B. returning; reading
C. to return; reading
D. returning; to read
答案
答案：C
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Remember ________ the book to the library when you finish _______ it. [ ]
A. to return; to read
B. returning; reading
C. to return; reading
D. returning; to read
答案：C