--- Willhecome?     ---  Iamnotsure

问题详情：

--- Will he come?   

   ---  I am not sure ___he will come, but I never doubt ______he will help us.

    A. that, if             B. that, that      C. if, if        D. if, that 

【回答】

D

知识点：连词

题型：选择题