Could they have forgotten their class.

Could they have forgotten their class. In fact,you did not know they could have been 请问Joey could get lost and they could have to page us to go pick him If they had taken my advice,they .A.had wonB.could wonC.should winD.could have won They could have let me know they were going to be late!翻译 They have done all they could to help him.为什么是to help? 英语翻译I Believe …That our background and circumstances may have influenced who we are,but we are responsible for who we become.I Believe …That no matter how good a friend is,they are going to hurt you every once in a while and you must forg enough money ,they could have finished the project on time.为什么用given?可以用giving Where did they have a good time Could you tell me合并为一句 where can(could) they have gone to?为什么没有be动词?—— When did they have a meeting?Could you tell me 合并成一句 求翻译,no one would ever buy them if they could have these instead they could't have achieved so much.so much是副词吗 Since last Saturday the workers have done what they could ____(make)the city more beautiful. Most people have their own goals of jods they could take in the future have done__ they could A both B all C none D neither They have already read an write填问号（can,could,be able to）适当形式 They could have made a difference with a little effort .的中文 意思?