-----What upsets him?-----_____ his computer is out of order.
#68973
A
Whether
B
What
C
That
D
How
推荐题目
I will put the book________you placed it and make a mark at the place________I put it.
#67077
A
where;at which
B
at which;at which
C
where;which
D
at which;where
 Here are all the books I have.You may borrow _______ you like.
#72661
A
that
B
which 
C
however
D
whichever