A person , when_________，can often do what is normally beyond his ability.
#90324
A
challenged
B
challenges
C
challenging
D
to challenge
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According to the information from the airline, a small sinking part of the runway of the airport is _____________ for the accident.
#90307
A
to blame
B
to be blamed
C
to blaming
D
to be blaming
If you ask me, I would say that I won’t mind ______abroad to enrich my knowledge.
#91226
A
taking
B
to take
C
to be taken
D
being taken
A _____ look appeared on her face when she heard the unexpected news.
#97062
A
worrying
B
worried
C
worry
D
worries