Question

【题目】is, a, black, this, pen (.)

Answer 1

【答案】This is a black pen.
【解析】is是, a一个, black黑色, this这个, pen钢笔。根据所给单词及标点符号判断，该句子是肯定句。句意是：这是一支黑色的钢笔。所以答案是This is a black pen.