问题
选择题
I'm not sure which restaurant ______ because I haven't been here for long. [ ]
A. to be eating
B. to eat at
C. to eat 
D. eating at
答案
答案：B
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I'm not sure which restaurant ______ because I haven't been here for long. [ ]
A. to be eating
B. to eat at
C. to eat
D. eating at
答案：B