单项选择题
A. She is always stupid. B. She is always concentrated. C. She is always careless. D. She is always absent-minded.
A. He went mountain climbing. B. He went camping. C. He went to a party. D. He went to a concert.
A. His paper has been published with the help of his adviser. B. His paper has won an award with the help of his adviser. C. His paper has been revised by his adviser. D. His paper has got the approval from his adviser.