1．Don't hesitate to discuss your plans with ________ you believe can be of great assistance to you.
A．who B．whom
C．whomever D．whoever
[解析]whoever 引出宾语从句，作从句中的主语，you believe 为插入语。
[答案]D
2． With your help, there is no doubt ________ our plan is meant for will work out successfully.
A．that what B．whether that
C．what that D．that whether
[解析]there is no doubt that 引出同位语从句，what 引出同位语从句中的主语从句，作主语从句中 be meant for 的宾语。
[答案]A
