The Burj Khalifa in Dubai is 828 meters high and there is no doubt it’s the tallest building in the world.
#67848
A
that
B
what
C
whether
D
which
推荐题目
While watching television, ________.
#68458
A
the doorbell rang
B
the doorbell was rung
C
we heard the doorbell ring
D
we heard the doorbell rings
I was about to sail away ______ I heard the sound of stamping and singing on the bank,
#68222
A
when
B
while
C
as
D
the instant
Though the key was pressed, nothing ______ on the screen.
#41230
A
appeared
B
was appeared
C
appears
D
is appeared
There is a popular view in cities, strangers are less likely to help an elderly person.
#67858
A
that
B
whether
C
why
D
how
The genetic engineering, ______ progress has been very rapid recently, is perhaps the most important of all the sciences．
#69473
A
to which
B
with which
C
in which
D
for