Cloning plants is straightforward cloning animals is very complicated .
#34234
A
so that
B
although
C
while
D
as if
推荐题目
．______ the satellite launch drawing near, the research workers put their hearts to the test and always stayed up late.
#33637
A
As
B
Because
C
With
D
While
Remember that there is still one point ______ we must make clear at the conference tomorrow.
#34331
A
where
B
why
C
when
D
that
The homework is not as heavy as ________he used to get. All________ he needs to do is improve English.
#31640
A
what, that
B
that, which
C
which, that
D
what, which
When I talked about the thing, I felt Jane watching me uncomfortably，looking____ she wished to speak.
#31407
A
as though
B
even though
C
so that
D
in case
_________ the internet is _________, I do not think it is a good idea to spend too much time on it.
#34019
A
When ; helpful
B
As ; great help
C
While ; of great help
D
Now ; of no help