He told us an interesting story about himself, _______________why he didn’t succeed that time. 
#97865
A
explain
B
to explain
C
explained
D
explaining
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We worked all night, _____ for the coming procession. 
#98012
A
to prepare
B
preparing
C
prepared
D
was preparing
Could I have a cigarette? I seem_________.
#95362
A
to run out
B
to have run out
C
to have run out of
D
to have been run out