根据所给的提示，完成句子。每空一词，含缩略词。
Hua Yu received an e-mail last Wednesday. (改为否定句)
Hua Yu                      an e-mail last Wednesday.
There are some students in their class. (对划线部分提问)
                students are there in their class?
Maria often lends his dictionary to me. (改为同义句)
I often ______a dictionary ______ Maria.
我们中国人认为钓鱼岛属于中国。
We Chinese think that the Diaoyu Island ________ _______ China.