We'll have to finish the job, ________.

We'll have to finish the job, ________.

A.difficult it is however

B.it takes however difficult

C.difficult however it is

D.however difficult it is

答案及解析： D

解析：

however引导让步状语从句，从句中用陈述语序，且连词however必然放在形容词或副词的前面．