I think I have tried my best.All that can be done ___.A.has done B.has been done C.had done D.had been done为什么选B不选D

来源：学生作业帮助网 编辑：作业帮 时间：2024/11/06 04:11:58
I think I have tried my best.All that can be done ___.A.has done B.has been done C.had done D.had been done为什么选B不选D
x͑ON@Ư2h& NA4FZ-݀X$bPw1+k'!be2|Mj ٵqJn*:>Cݲ|fC̀ :*r^iLVt|Ub&wV8vMlEɐuI3U|bc[2ߐGe vl۵o"raRIקwd>ъsN@xIO.tI?%&-ő]g;_RÇ>yHit!.ejocB

I think I have tried my best.All that can be done ___.A.has done B.has been done C.had done D.had been done为什么选B不选D
I think I have tried my best.All that can be done ___.
A.has done B.has been done C.had done D.had been done
为什么选B不选D

I think I have tried my best.All that can be done ___.A.has done B.has been done C.had done D.had been done为什么选B不选D
我认为我已经尽力了,所有能做的都做了.All that（ can be done）has……和I think I have……里的have同时态.表示现在已经,从现在来看.过去完成时,是过去的过去,要有一个过去的时间点才行.这题是讲现在.

I have tried 和 I tried 有什么不同 i have tried.guys,i really tried是什么意思 I think all the_____(design)have tried their best to finish the job I have just tried to ring you... I have tried the mooncakes是什么意思 I think i have lost I think you have rt I think you have sex I think you can have I think I deserve to have you I think I have poor-------(健康） I have tried my best and given my heart Have you tried it?(yes.i have just tried it.i have never tried it before)这个回答是正确的吗? OC!i tried already I tried to call I don't think so.I am very tried.的意思 i dont think about what i have done,i think about what i have contributed I have tried,but I feel that it is OK.I remember a Chinese