I have no idea ________ the cell phone isn’t working, so could you fix it for me?
#67762
A
what
B
why
C
if
D
which
推荐题目
If he _____ free tomorrow , he ______ to see me .
#41286
A
will be; will come
B
has ; comes
C
is;will come
D
is; comes
The how to book can be of help to______  wants to do the job.     
#74293
A
who
B
whomever
C
no matter who
D
whoever