amount和number的区别
请帮解答此题 A(n)____of experts are looking into the matter and finding out the cause of it will take a certain____ of time. A number;amount B number;amounts C amount;amount D amount;number 谢谢各位了!
a amount of +不可数名词 a number of+可数名词复数 所以选择A
答:fewer和less的区别 fewer和less都是表示数量的比较级形式,fewer修饰可数名词,less修饰不可数名词。详情>>
答:B 被动语态,be found to do. A中的made与found均为过去分词,冲突!详情>>
问:hArd work 和hArd--working有什么区别
答:一个是名词 一个是形容词撒详情>>