摘要： Is this research center you visited the modern equipment last year? A. Where B. that C. the one that D. the one where
网址：http://m.1010jiajiao.com/timu3_id_2451138[举报]
Is this research center ________ you visited the modern equipment last year?
A. where B. that C. the one that D. the one where
查看习题详情和答案>>