We don’t doubt he’ll give us much help. we doubt is he’ll e on time
A. whether, That, when
B. that, What, whether
C. whether, What, whether
D. that, Why, whether
网友回答
A. whether, That, when
(答案→)B. that, What, whether
C. whether, What, whether
D. that, Why, whether
解析：考查名词性从句。第一空是宾语从句，doubt用于否定句中使用that，第二空是主语从句，we doubt 后缺少宾语，所以用关系词What，第三个空是表语从句，是否按时来，所以用whether，古选B。