1.50-cents-a-day 为什么这个cent后面要加S呢?2.Above Over怎么区别呢?

1.50-cents-a-day 为什么这个cent后面要加S呢?2.Above Over怎么区别呢? 英语翻译For the price of 25 cents (or 5 cents per machine),customers moved frommachine to machine to watch five different films (or,in the case of famousprizefights,successive rounds of a single fight).为什么For the price of 25 cents (or 5 cen The man said he would buy a stamp with the ________.A.remained 29 cents B.remaining 29 cents C.29 cents remained D.left 29 cents知道选B.原因请说的尽量详细点好吗, cents是什么意思.A discount of 5% maybe allowed if the quantity for each specification is more than 1000 cents. ___________ conventional black ink costs newspaper about thirty cents a pound,most rub-resistant inks addes at least ten cents more to the bill.A.While B.Meanwhile C.Furthermore D.Moreover 不知道为什么选择A,四个选项有什么异同! 为什么说a fun day 不说a funny day in a rainy day or on a rainy day,为什么 为什么不能说a day,而要说one day SAT问题：Milk costs x cents per half-gallon and y cents per gallon. If a gallon of milk costs z cMilk costs x cents per half-gallon and y cents per gallon. If a gallon of milk costs z cents less than 2 half-gallons, which of the following equation 英语翻译这是一道听力题.对话 w:Gan I help you ,Sir?m:How much are the delicious red apples?w:The big ones are forty cents a pound;the smaller ones are thirty cents a pound..1.10cents 2.14cents 3.30cents once a day.和once a day.every day.哪句话对once a day.和once a day.every day.哪句话对?为什么? 英语翻译They added up to two dollars and six and a quarter cents.着重翻译：two dollars and six and a quarter cents. 我的一天是My day还是My a day为什么不是My a day ----------is drawing near.A.The National Day B.A National Day C.National Day D.The Day of National为什么 英语翻译Clifford Stoll ran a computer system in Berkeley,California.As a system manager,he kept a close eye on the records.One day,Stoll found something strange in the payment record.There was a 75 cents mistake.One of the thousands of users had day ,i do check my e_mails once a day.前面为什么用day a photo processing lab lists the following prices for reprints :29cents for a 3*5 print ; 39 cents for 4*6 print:and 55 cents for a 5*7 print find a quadratic function of the form f(x)=ax平方+bx+c that models the cost (in cents) per print in terms （ ）is this cup of coffee?It's forty cents a cup.