Nobody can explain the mystery ____ he suddenly disappeared.
#70049
A
why
B
what
C
whether
D
which
推荐题目
We went back to the street and to the house, in front of ______ we had found the BlackBerry cellphone.
#69860
A
it
B
which
C
that
D
what
We walked for two hours to get to the top of the mountain from ___we had fantastic views.
#69997
A
which
B
where
C
what
D
that
The great scientist became world-known in the early 1970s,______ he and another scientist made new discoveries about black holes.
#73597
A
which
B
where
C
when
D
then
I just wonder ________ that makes him so excited.
#66790
A
why it is
B
what is it
C
how it is
D
what it is
A fast food restaurant is the place ____, just as the name suggests, eating is performed quickly.
#72041
A
which
B
where
C
there
D
what