This new method of teaching for the time being in our school. It will be carried out all________over the city.A. is experimenting B. is experimented C, is being experimented D. has been experimented
Gun control is a subject ________ Americans have argued for a long time.
Wind power is an ancient source of energy ________ we may return in the near future.
She showed the visitors around the museum,the construction ________ had taken more than three years.(2011·江西)
Julie was good at German,French and Russian,all of ________ she spoke fluently.(2011·湖南)
Care of the soul is a gradual process ________ even the small details of life should be considered.(2012·湖南)