this is Mr.Smith,_____i think has something interesting to tell us.A.whoB.whom C.thatD.what请分析出考点及解题思路

Question

this is Mr.Smith,_____i think has something interesting to tell us.
A.who
B.whom
C.that
D.what
请分析出考点及解题思路

Answer 1

who
引导非限定性定语从句,因为是非限定性,所以不能用that