Inwriting,studentsmaynotknowhowtoputsomethingintoproperEnglishandthusasktheir,teacherforhelp.Heretheteacheristoplaytheroleofa/an__________
A.facilitator B.assessor C.controller D.participant正确答案A
Inwriting,studentsmaynotknowhowtoputsomethingintoproperEnglishandthusasktheir,teacherforhelp.Heretheteacheristoplaytheroleofa/an__________
A.facilitator B.assessor C.controller D.participant正确答案A