______they have been working hard to find?
#70400
A
Is that what
B
Is that
C
It is that
D
Is it that
推荐题目
The explorers failed to find the cave because it was not located they had expected it to be.
#66934
A
which
B
that
C
where
D
what
As is recorded in history, silkworms (蚕) were first raised by a woman in _________ is today Hebei Province.
#68727
A
where
B
the place
C
which
D
what
The announcement ______all flight were cancelled because of bad weather greatly distressed the waiting passengers.
#70274
A
that
B
which
C
why
D
of which
Frank _____ to see his grandma if he _____ free tomorrow.
#41363
A
will come ; will be
B
comes ; is
C
will come ; is
D
is; come
There is much truth in the idea _ kindness is usually served by frankness.
#68202
A
why
B
which
C
that
D
whether