Two hours is enough for us to finish the experiment为什么要用介词for

Two hours is enough for us to finish the experiment为什么要用介词for two more days is enough the trip is about two hours.划线about two hours Xiaogang is two hours' train___ from Wuhan 关于英语主谓一致Two million tons of coal ______(were/was)exported last year Five hours of sleep ______(is/are)not enough.原因是什么? She is coming back______应该填什么：for two hoursin two hourstwo hours agoafter two hours Two glasses---------enough填is 还是 are 分析英语语法选择题“Two hours ___ long enough for you to finish your homework”1.Two hours ___ long enough for you to finish your homework.A.is B.are C.has D.have(正解A)2.A seven-day holiday _________ long enough to have a good rest and two hours two hours - enough for me to那个应该选什么,Aare Bis Cdo Ddose Two is enough.为什么用is?主语是? one or two 加时间,谓语用单数还是复数?如：one or two hours （ ）enough. 4.句型练习1.To go fishing is fun.(句意不变)_ is fun _ _ fishing.2.It look me two hours to do my homework yesterday.(句意不变)I _ two hours _ my homework yesterday.3.The boy was not tall enough to reach the book on the shelf.(保持原句 A two hour B two hour‘s C two hours's D two hoursThe theme park is about______ride from the museum。you should start out right nowA two hour B two hour‘s C two hours‘ D two hours after plays volleyball for two hours tom is very t The concert is worth______(wait)for two hours. is,two,too,for,hours,long,us连词成句 Eight hours of sleep is enough.为什么用is 不用are.细节决定成败.那Eight hours of tasks are/is enough 请赐教.