_______ 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
There is no point ________ time ________ with him.
#93147
A
to spend; to argue
B
in spending; arguing
C
to spend; arguing
D
in spending; to argue
They are not very good, but we like_______.
#94098
A
anyway to play basketball with them
B
to play basketball with them anyway
C
to play with them basketball anyway
D
with them to play basketball anyway
It ______ three years since I left England.
#94693
A
has been
B
was
C
had been
D
will be