_______ the smoke come out of the building, my first thought was to call the fire department as soon as possible.
#92680
A
Having seen
B
When seeing
C
When I saw
D
Seeing
推荐题目
__________ no need for us to discuss the problem again. It has already been settled.
#94695
A
It has
B
There has
C
It is
D
There is
____ is it to ask her about that? She doesn’t know it either.
#94018
A
What good
B
How good
C
What a good
D
How much good
----Is this the first time you _____Chengdu ?----No. But the first time I _____here, the city wasn't so beautiful.
#92662
A
visited, came
B
visited, have come
C
have visited, have come
D
have visited, came
Carl Linnaeus made great contributions to ________ plant species.
#93953
A
group
B
have grouped
C
grouping
D
been grouping
It will be more than 100 years ____ the country begins once again to look as it did before.
#93228
A
when
B
since
C
before
D
that