【简答题】将下列句子改写为否定句和一般疑问句。 He is a student. She can speak English. They like Chinese very much. Tom goes to school at 7 o'clock. His brother watched TV yesterday. Miss Niu will go to Shanghai tomorrow. She ha...
【简答题】We have spent a great deal of time and money 1 space, but remain ignorant about vast areas of our own 2 . For we still know little of the world 3 the seas. With so much to 4 life in the depths of the ...