She looks sad. Could you please tell me ____ that prevents her from being as happy as before?
#74187
A
what it is
B
it is what
C
how it is
D
it is how
推荐题目
----_____is it that is troubling Mary ?----Working out the maths problem..
#70665
A
What
B
How
C
Why
D
Which
The news _____ the prime minister will pay a visit to our school next week has been confirmed.
#67951
A
when
B
whether
C
why
D
that
Since ______ to the world, the dance “GangnamStyle” has caused a release of a certain feeling.
#68121
A
introduced
B
introducing
C
being introduced
D
to be introduced
________ had been done, the working efficiency of the employees still remained low.
#69428
A
Though
B
Despite the fact that
C
Despite
D
Despite what
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