问题
选择题
Where ______ they______ dinner? I can't find them. [ ]
A. do; have
B. are having
C. are; have
D. do; having
答案
答案：B
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Where ______ they______ dinner? I can't find them. [ ]
A. do; have
B. are having
C. are; have
D. do; having
答案：B