以下是你要的答案:I think we_will have___(have) fewer books in 2050There ___will be__(be) a math exam next MondayAll the students were in silence while the teacher___was writing______(write) on the bla...上面还有She said she____would go_______(go)to Hainan the next dayWhen my mother called me，I ___was doing_____(do) my homework