______ all the possibilities, I really believe that I’d prefer to make any change now.
A.Considering
B.Considered
C.To consider
D.Consider
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A解析此题考查v-ing 分词的特殊形式。此题中considering为独立成分，做此题时无须考虑其和句子主语之间的逻辑关系，类似的独立成分还有generally speaking, judging from /by等。