_______ 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
Her dog ran out of the yard the old lady opened the gate .
#94137
A
moment
B
a moment
C
the moment
D
that moment
Twenty students want to attend the class that aims to teach________to read fast.(2011·辽宁)
#91865
A
what
B
who
C
how
D
why
（2007年普通高等学校招生全国统一考试山东卷，24）_____________ worries me the way he keeps changing his mind.
#95086
A
This
B
That
C
What
D
It
We should think of ways to stop the waste from the factory _____ our living environment.
#94851
A
being polluted
B
polluting
C
from being polluted
D
polluted