>
英语
>
his average speed had been 299 miles per hour
这句话用的是过去完成被动时态吗 为什么要用被动形式呢?
人气：472 ℃ 时间：2020-06-17 09:06:03
解答
不是被动式,被动式是be后面加动词的过去分词.
这里的been后面是299 miles per hour,是一个速度,相当于一个名词.
had been是过去完成时态,
意思是在过去的某一时间他的平均速度曾经是（达到过）299 mph
推荐
His average speed had been 301 miles per hour.句子成分
Campbell was disappointed to learn that his average speed had been 299 miles per hour.句子成分
his average speed had been 301 这里面的been是什么
Was his average speed incorrectly declared to be 299 miles per hour or 289 miles per hour?
求：the average speed over the 8 miles is 33 miles per hour.怎么翻译.
he was ___ (too much,much too) worried about his son.请问此处填啥?
一元二次方程kx2-（2k-1）x+k+2=0，当k为何值时，方程有两个不相等的实数根？
怎样让在地震中的房屋不容易倒塌
猜你喜欢
可恶的数学题
将28g KOH溶于水配制成1L 溶液，此KOH溶液的物质的量浓度是（ ） A.0.5mol•L-1 B.1mol•L-1 C.2mol•L-1 D.4mol•L-1
in my o____ it is a good plan but hard to carry out
用1，2，3，4，5，6，7，8，9这九个数字写出三个大小相等的分数．（每个数字只允许用一次）． 例如：3/6＝7/14＝29/58．
已知二元一次方程2x-4y=5,用含y的代数式表示x,x=______;当y=-2时,x=________.
I when to Beijing when I was young这句对不
已知ai∈R+,且a1+a2+...ai=1 求证:(a1+1/a1)^2+(a2+1/a2)^2+...+(an+1/an)^2>=(n^2+1)^2/n
高一上学期语文要背的课文
© 2026 79432.Com All Rights Reserved.
电脑版
|
手机版
