选A do you suppose/ believe/ imagine 等在特殊疑问句中做插入语,同时特殊疑问句保持陈述语序,即主谓的语序,插入语去掉后不影响主干句表达完整的意思 What is his brother?他哥哥是干什么的?这是没有加入插入语时的特殊疑问句,当然是疑问语序,加入后变成what (.)his brother is 变成了his brother is 的陈述语序.整句翻译：你猜（或认为）他哥哥是做什么工作的?