【题目】You may rely on_______ he'll come to help you.
A.that
B.it that
C.whether
D.it if

【答案】B
【解析】考查固定结构。句意：你可能要依赖他帮助你。rely on 意思是“依靠”，it形式宾语指代后面的that 从句。故选B。