When I try to find ______that prevent so many people from taking part in the program, it seems to me that there are two main causes.
#4996
A
why it does
B
what it does
C
what it is
D
why it is
推荐题目
--- Where is the post office ? --- Go to the ______ and you’ll see the post office ______ the street．
#4642
A
bicycle’s shop ; cross
B
bicycle shop ; across
C
bicycles shop ; cross
D
bicycles’ shop ; across
We must keep our room clean, for dirt and disease go______, you know.
#4919
A
hand in hand
B
step by step
C
from time ti time
D
one zfter another
It was at this shop ______ I came across one of my old friends.
#4515
A
which
B
that
C
where
D
in which
The couple are spending their holiday on __is described as one of the most beautiful islands .
#4987
A
that
B
what
C
which
D
where