You can keep all the files and documents you think it is convenient to get them．
#30188
A
what
B
how
C
where
D
when
推荐题目
________you’ve experienced it，you can’t understand how I felt.
#30226
A
Once
B
Because
C
Unless
D
While
I’d like to start my own business ---- that’______ I’d do if I had the money.
#29986
A
that
B
what
C
where
D
whether
The lawyer seldom wears anything but the suit ________the season
#31604
A
whatever
B
however
C
whenever
D
wherever
Then Wang Ping flashed a switch on a computer screen，and a table and some chairs rose from under the floor by magic.
#31822
A
only if
B
even if
C
as if
D
what if
I want to thank my friend John, without _____ help, I wouldn't have been saved.
#31068
A
his
B
whose
C
whom
D
Which