谁帮我答几道英语选择题

谁帮我答几道英语选择题1,I__________matters most in learning English is enough practise.A,What B,Why C,Where D,Which2,Go and get your coat.It's__________you left itA,there B,where C,there where D,where there3,Could I speak to__________is in charge of international sales,please?A,anyone B,someone C,whoever D,no matter who4,There is much chance__________Bill will recover from his injury in time for the race.A,that B,which C,untill D,if5,The boy dived into the water and after__________semmed to be a long time,he came up again.A,what B,that C,it D,which7,__________she couldn't understand was__________fewer and fewer students showed interested in her lessonsA,What...because B,That...that C,What...why D,Why...that8,__________made the school worried was__________the football match had to be put off.A,What...because B,What...that C,That...what D,That...because9,Can you make sure__________the key?A,where Alice had put B,where had Alice put C,where has Alice put D,where Alice has put10,The doctor couldn't answer the question__________the patient could survive that nightA,if B,that C,whether D,what最好说一下为什么选择这个选项,第六题我会了所以去掉了