单选题 We explored the possibility of expansion at the conference.
A. offered B. included C. accepted D. investigated

【正确答案】 D
【答案解析】[解析] 题意:在会上,我们研究了扩建的可能性。
划线词的词义是“调查,研究”。
A项offer意为提供;例句:If she was offered the job, she'd take it.如果提供给她这个工作.她就会接受。
B项include意为包括;例句:The bill came to $467, tax included.账单计467美元,含税。
C项accept意为接受;例句:I accepted it cheerily.我高兴地接受了。
D项investigate意为调查,研究。例句:The police are investigating the murder.警察正在调查这桩谋杀案。
很明显D项正确。