行列式
则下列结论正确的是()
Weregretto________thatitmaynotbepossibletodealwitheveryrequest.
在社会主义改造的过程中对农民不采取剥夺办法的原因是___________。
Howlong________they________(dig)theditch?
Thefloordoesnotlooksobadwhen________(sweep)clean.