He tried his best to solve the problem, _______ difficult it was.
#67486
A
whatever
B
however
C
whichever
D
wherever
推荐题目
The man ___ was an old classmate of mine.
#72345
A
you just talked to him
B
who just talked to
C
you just talked to
D
whom you just talked
 ------ What did he want to know, Jim?-------_________ I could finish writing the report.
#66591
A
When was it
B
It was when that
C
It was when
D
When it was that