问题
选择题
I was enjoying my dessert and talking to my American friend Janice at the table _____ I noticed people
staring at us.
A．until
B．as
C．when
D．while
答案
答案：C
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I was enjoying my dessert and talking to my American friend Janice at the table _____ I noticed people
staring at us.
A．until
B．as
C．when
D．while
答案：C
面点隙沟裂易致食物滞留