Richard was called in by the police to answer questions _______ the disappearance of Thomas Ripley, whose relatives were so ______ his present situation.
#4655
A
concerning; concerned about
B
concerned; worrying about
C
with regards to; concerned
D
regarding; concerning about
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Have you heard ______ news?The piece of _______ petrol is going up again!
#4937
A
the, the
B
不填,the
C
the, 不填
D
不填,不填
.If _____,the experiment will be successful.
#4718
A
carefully doing
B
it done carefully
C
carefully done
D
doing carefully