Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/8d4b1a462df7594416629cbbcd895c35.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 modal auxiliary verbs是什么意思，modal auxiliary verbs的翻译，modal auxiliary verbs音标、读音、用法和例句_果味酸柯林斯词典
They also have the knowledge that English modal verbs should be placed on the left of the negator and at the beginning of the interrogatives. 这说明受试具有英语定式句中题元动词不能显性提升而情态助动词必须显性提升的句法知识。