【题目】连词成句：are happy they but are we not very (, .)
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【答案】They are very happy, but we are not.
【解析】
are是，happy开心的，they他们，but但是，are是，we我们，not不，very很，根据所给的句号，可知句子是一个陈述句，根据所给词义可以连成句子：他们很高兴，但我们不高兴。故答案为They are very happy, but we are not.
