Question

英语语法问题

some Martian rock structures look strikingly like structures on earth that we are known ( ) by microbes.
1.to have been created
2. to be created
为什么选第一个而不是第二个？

Answer 1

选c
congratulation 在用时一般要用复数
congratulation 是名词
动词形式是congratulations
Congratulations to sb.祝贺某人。
也可以说Congratulations!
还有一说法：Congratulations on sth. 祝贺你。。。
例：Congratulations on your marriage.
恭贺你喜结良缘了。
We must telephone our congratulations (to the happy couple).
我们得（给那对幸福的夫妇）打个电话表示祝贺.
May we proffer you our congratulations?
请让我们向你表示祝贺.
Please give him my congratulations when you see him.
请见到他时转达我的祝贺。

celebration
KK: []
DJ: []
n.
1. 庆祝[U]
The party was in celebration of Mother's silver wedding.
聚会是为庆祝母亲的银婚。
2. 庆祝活动,庆典[C]
A Fourth of July celebration includes a display of fireworks.
七月四日独立纪念日庆典包括燃放烟火。
3. 颂扬[C]
His novels were celebrations of anarchism.
他的小说颂扬无政府主义。