4、ttention______yourworkwell.A.towork,todoB.toworking,todoingC.towork,todoingD.toworking,todo9.Bothofmyparentsinsisted_______acomputerforme,butIdon’tthinkitisnecessary.A.tobuyB.buyingC.onbuyingD.inbuying10.“Doyouhaveanythingmore______,sir?”“No.Youcanhavearest or d