考查让步状语从句的语序问题.从题干来看.缺少的是状语.意思是“我们不得不完成这工作.不管它要花多长时间 .后半部是个让步状语从句.由however引导.相当于no matter how long it takes.其它结构都是错误的.however, whatever引导让步状语从句时.与其被修饰的词放在主谓前面.不倒装.如: However important she is, she is my wife. Whatever dictionary you have, lend it to me. 查看更多

 

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