What did 'I' NOT do to keep Buster and Helen safe?
A.Exchanging places.
B.Encouraging them.
C.Shouting to them.
D.Telling stories.

A.Exchanging
B.
B.Encouraging
C.
C.Shouting
D.
D.Telling
E.

【参考答案】

D
解析：细节题。由原文第六段至第九段可知。为了能安全渡过此次山洪，本文作者即姐姐勇敢地担当起了照顾弟弟妹妹的责......

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