glasses 用is还是areThere ( ) a pair of glassesThere ( )glasses这两个有区别吗?

glasses是单数还是复数!eg：Where is my glasses?是用is还是are? glasses 用is还是areThere ( ) a pair of glassesThere ( )glasses这两个有区别吗? Two glasses of milk be动词用is还是are Two glasses---------enough填is 还是 are glasses这个单词当“眼镜”解释而且当主语时be动词用is还是are? 老师,您好!My glasses are broken .对还是My glasses is broken. 这是谁的眼镜?whoes glasses are they 还是 whoes glasses is it 1.是This is a pair of glasses 还是They a pair of glasses 2.是This is two glasses of juice还是They are two glasses of juice.我想问的是比如一双袜子、一副眼镜（可数名词）时前面是用is 还是are,比如两杯果汁时（不 glasses 谓语动词用单数还是负数 There ( ) a pair of glasses. is 还是are how much( ) the glasses添is还是are the glasses of millk后跟is还是are The girl( )glasses is ( )red.第一个空用with还是in?还有第二个空用with还是in?为什么? ---How much yogurt do you need for your breakfast?----Two glasses( )enough.括号里填is 还是 are酸奶不可数该用is the girl with glasses is in 为什么用“with”? the pant 后跟is 还是 are像glasses .shoes ,trousers.这类词是用单数还是复数 急 the woman () glasses is a doctor 括号里是 in 还是 with the woman () glasses is a doctor 括号里是 in 还是 with red glasses前用in还是with?同上