Question

【题目】They __________ have a mobile phone (手机).
A.isn't
B.aren't
C.don't
D.doesn't

Answer 1

【答案】C
【解析】考查否定句陈述句。陈述句中只有一个实意动词作谓语且其时态为一般现在时，变为否定句时要在动词前加don't或doesn't, 其后的实义动词用原形。第一人称/第二人称/第三人称复数主语 + doesn't + 动词原形+其他 .第三人称单数主语 + doesn't +动词原形+其他。They 为第三人称复数，所以答案是 C。