if 引导的宾语从句,可否用于疑问句中?如：Do you think that it is a good book 还是

问题描述：

if 引导的宾语从句,可否用于疑问句中?如：Do you think that it is a good book 还是 Do you think if

1个回答分类：英语 2014-10-12