.Modern agriculture has greatly developed and nowadays animals are usually raised in _____ we call factory farms. As a result of this, lots of labour is saved.
#34373
A
which
B
where
C
what
D
how
推荐题目
---There is some doubt _____ the concert will be held as the company intends to redecorate the stadium next week. ---What a pity!
#32642
A
where
B
that
C
if
D
how
The boy was excited he went to Beijing.
#30893
A
the first time
B
for the first time
C
first time
D
for first time