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