英语口语练习小对话 第905期:AA制
2015-09-15来源:和谐英语
Update Required
To play the media you will need to either update your browser to a recent version or update your Flash plugin.
There’s a question I’m not sure whether it is suitable to ask.
要点解析:这个是一个含有定语从句的复合句。主句是There’s a question,定语从句是I’m not sure whether it is suitable to ask。先行词也就是被修饰的词是question这个名词,它在定语从句中做ask的宾语,指代物,引导词可以用that或者which,而且可以省略。
在定语从句中,含有一个由whether引导的补语从句:whether it is suitable to ask,补充说明not sure的的具体内容。