【题目】连词成句：was, our, lesson, grandpa, for, with, out, I, Chinese (.)
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【答案】I was out with grandpa for our Chinese lesson.
【解析】
was是，our我们的，lesson课程，grandpa爷爷，for为了，with和， out外出， I我，Chinese中文。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：我和爷爷出去上语文课了。故答案为I was out with grandpa for our Chinese lesson.