There were two teachers named John ________at our school, which made some of our students ________. 
#97150
A
working;confused
B
worked; confusing
C
work; confused
D
to work; confusing
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________volcanoes now for many years, I am still as enthusiastic about my job as the first day I first______.
#92841
A
Studied, started
B
Have studied, started
C
Having studied, started
D
Having studied, starting
In later years, people reported ____ a monster swimming across the lake.
#94741
A
to see
B
have seen
C
seeing
D
to have seen
_______________ while writing, he locked himself in his study.
#94156
A
Not to interrupt
B
Not being interrupted
C
Not to be interrupted
D
Being not interrupted