问题
单项选择题
Few students failed in the exam at the end of last term,（） ?
A.do they
B.didn’t they
C.don’t they
D.did they
答案
参考答案：D
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Few students failed in the exam at the end of last term,（） ?
A.do they
B.didn’t they
C.don’t they
D.did they
参考答案：D