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
---Now more and more Chinese senior students are applying for admission to American universities through SAT.
---________. But taking an SAT may cost one more than 10,000 yuan.
Scientists generally agree that Earth’s climate will warm up over the next 50 to 100 years _________ it has warmed in the 20,000 years since the Ice Age.