During the scientific experiment, Mr. Chen carefully poured the water into the tube, with my classmates ____ beside to see what would happen. 
#96515
A
were standing
B
stood
C
standing
D
to stand
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 We will do everything we can____ our city.
#97384
A
to save
B
save
C
saving
D
saved
__________of danger in the street at night, she had to go home, with a friend_________ her. 
#94580
A
Warned, followed
B
Warning, following
C
Having warned, following
D
Having been warned, following