英语翻译1.Eric did not know how he could memorize so many new wo

英语翻译1.Eric did not know how he could memorize so many new words in shourt time .（改为简单句）Eric did not know____________memorize so many new words in shourt time .2.If it isn't very cold tonight ,I will sleep with the window open.（同义句转换）___________ very cold tonight ,I will sleep with the window open.3.卡落而发现有时候听音乐也很令人沮丧．（翻译）Sometimes,Carol finds __________,too.另外我想问一下,pronunciation有没有复数?