英语.Manyexpertshaveraiseddoubtsabout____itisrighttojudgeteachers'
Manyexpertshaveraiseddoubtsabout____itisrighttojudgeteachers'performanceonstudents"testscores.
A.that B.what C.whether D.if
Idon'tdoubt____he'llcome.
A.if B.whether C.that D.what
第二题为什么选C,不选B.请说明理由,