When I approached to the subway entrance, an explosion occurred. This ___my first experience, I got into panic
#102823
A
was
B
is
C
being
D
been
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 The hotel wasn't particularly good,but I ________ in many worse hotels.
#100427
A
was staying
B
stayed
C
would stay
D
had stayed
—— Bob has gone to California.—— Oh, can you tell me when he _____?
#101904
A
has left
B
left
C
is leaving
D
would leave
—Look, where are you going!—Sorry, I _______.
#100564
A
wasn’t noticing
B
didn’t notice
C
haven’t noticed
D
am not noticing