— When did the meeting begin?—At four o’clock．It ______ for 15 minutes．
#53894
A
was on
B
began
C
has been on
D
has begun
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–– When did they arrive?–– They ______two hours ago .They ______ here for two hours .
#58577
A
arrived; have arrived
B
arrived; have been
C
got; have been
D
reached; have reached
He _________ for two years. We are still sad about his _________.
#55114
A
died, dead
B
died , death
C
has been dead , dead
D
has been dead, death
I used to be afraid to speak in front of public before, but recently I _____ a lot.
#52312
A
have improved
B
improved
C
will improve
D
am improving