问题
选择题
—Excuse me, Jim. I can't find my ruler. Can you see it?
—I'm sorry I ______.[ ]
A. can
B. am not
C. can't
D. not can
答案
C
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—Excuse me, Jim. I can't find my ruler. Can you see it?
—I'm sorry I ______.[ ]
A. can
B. am not
C. can't
D. not can
C